$7.79 + $0.89 + $412.37 + $7

428.05 US$

Step-by-step explanation:

You add each piece of money to each other

You start with 7.79 and 0.89

then 412.37 and 7

then you get 8.68 and 419.37

you add those to get 428.05

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.