f(x)=-2x-3
The function f is defined above. If f(a)=2 , what is the value of a

Which of the following is equivalent to the expression 3(x+2)(x-5)+2(x+1)(x+3)

If a and b positive integers , which of the following 8s not equivalent to -a/-b

In the xy- plane , what is the radius of the circle with center (5;2) and y - intercepts (0; -10) and (0; 14)

At a snack bar, each medium drink costs $1.85 and each large drink costs c more dollars than a medium drink. If 5 medium drink and 5 large drink cost a total of $20.50 , what is the value of c?