Answer these 3 questions ASAP pls.. a. Is 15 a multiple of 4?
is 4 a factor of 15

b. Is 20 a multiple of 5?
Is 20 a factor of 5?

c. is 100 a multiple of 8
is 8 a factor of 100?

thank u for doing this makin you brainliest(loadin)

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?