Pre-algebra final exam questions i am stuck on ! ( show units and work if necessary) 2 points per question 1) solve for x: 2x=12 2) if x=10, what is x+2x+7? 3) a petting zoo always brings 5 goats to a birthday party. they also bring two chickens per guest. if there are 20 guests, how many animals in total will be brought?

according to this law, when unemployment goes up by 1%, gdp drops by 2%. in the question, unemployment rate goes from 2% to 5%, meaning unemployment goes up by 3%, so the gdp drops by 6%. thus the effect is a drop in gdp by 6%.

step-by-step explanation:

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

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