Evaluate 9.1s + 8.5t when s= 6 and t=7. 9.10 +8.50 =
+59.5
11
9.1 +8.50
=
+ 59.5

The answer is 114.1.

Step-by-step explanation:

You have to substitute the s and t value into the expression :

4.6875 pounds

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

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