Evaluate the expression when a=5 and b= -5. -a +8b

-45

Step-by-step explanation:

Substitute the variables.

a = 5

b = -5

-a + 8b

-5 + 8(-5)

-5 + -40

-45

(Some people may not appreciate the irrelevant graphic you've added.)

gregory's graph is incorrect because it shows 2 inches of growth for each week when it should show 0.75 inches of growth each week.

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation: