Plz hurry it's
evaluate –4ab when a = –2 and b = 5.

–40

–14

14

40

You got a job selling magazines door-to-door. you are paid $100 per day plus $1.50 for each magazine you sell. which recursive formula models this situation?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)