FIRST CORRECT ANSWER GETS BRAINLIEST!! THIS IS DUE TMRW PLEASE HELP

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

Candice uses the function f(t)=t+100−−−−−−√ to model the number of students in her after-school program. the variable t represents days and f(t) represents the number of students. how many days does it take for there to be 15 students in her program? a. 225 days b. 125 days c. 325 days d. 115 days

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5