If a + b = -2
and x + y = -2
what’s 4x+5a+4y+5b?

-36

Step-by-step explanation: 4(-2)+5(-2)+4(-2)+5(-2)

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.