Ошибка преобразования float в float*

#include <iostream>
#include "gkh.h"
int main(int argc, char *argv[]) {
std::string name;
std::string last_name;
std::cout << "Name: ";
getline(std::cin, name);
std::cout << "Last name: ";
getline(std::cin, last_name);
 
Gkhs *gkh = new Gkhs(name, last_name);
float sc[5];
float sum = 0;
std::string gkh_sc[] = { " gas : ", " h.voda : ", " teplo : ", " drova : ", " g.voda : " };
int k = 0;
for (int i = 0; i < 5; ++i) {
std::cout << "usluga " << gkh_sc[k++];
std::cin >> sc[i];
sum = sum + sc[i];
}
gkh->set_sc(sc);
float vsa_sum = sum;
gkh->set_vsa_sum(vsa_sum);
std::cout << " Sum for " << gkh->get_name() << " "
<< gkh->get_last_name() << " is "
<< gkh->get_vsa_sum() << std::endl;
delete gkh;
system("pause");
return 0;
}

#include <string>
#include <fstream>
#include "gkh.h"
 
Gkhs::~Gkhs() {
save();
}
void Gkhs::save() {
std::ofstream fout("gkhs.txt", std::ios::app);
fout << Gkhs::get_name() << " "
<< Gkhs::get_last_name() << " ";
for (int i = 0; i < 5; ++i) {
fout << Gkhs::sc[i] << " ";
fout << Gkhs::vsa_sum << " ";
}
fout << std::endl;
 
fout.close();
}
Gkhs::Gkhs(std::string name, std::string last_name) {
Gkhs::set_name(name);
Gkhs::set_last_name(last_name);
}
void Gkhs::set_name(std::string gkh_name) {
Gkhs::name = gkh_name;
}
std::string Gkhs::get_name() {
return Gkhs::name;
}
void Gkhs::set_last_name(std::string gkh_last_name) {
Gkhs::last_name = gkh_last_name;
}
std::string Gkhs::get_last_name() {
return Gkhs::last_name;
}
void Gkhs::set_sc(float sc[]) {
float sum = 0;
for (int i = 0; i < 5; ++i) {
Gkhs::sc[i] = sc[i];
sum += sc[i];   
}
}
float *Gkhs::get_sc() {
return Gkhs::sc;
}
void Gkhs::set_vsa_sum(float sum) {
Gkhs::vsa_sum = sum;
}
float *Gkhs::get_vsa_sum() {
return Gkhs::vsa_sum;
}

#include <string>
class Gkhs {
public:
void save();
~Gkhs();
Gkhs(std::string, std::string);
 
void set_name(std::string);
std::string get_name();
 
void set_last_name(std::string);
std::string get_last_name();
 
void set_sc(float[]);
float *get_sc();
std::string get_sc_str(char);
 
void set_vsa_sum(float);
float *get_vsa_sum();
std::string get_vsa_sum_str(char);
private:
float sc[5];
float vsa_sum;
std::string name;
std::string last_name;
};