Write an equat on that models this situation.
Kristy wants to make Valentines, each decorated with 4
need to make the cards?
, for 7 of her friends. How many inches of lace (x) does Kristy
7x = 4
Submit
Expressions and Equations
ove Problems

-2 is the right

attachment?

step-by-step explanation:

umumumumum

im not sure

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

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!