Which number sentences show how to solve the problem?

luis bought 5 bags of red balloons for the party. ruby bought 8 bags of mixed-color balloons. each bag contains 35 balloons. how many balloons did luis and ruby buy altogether?

choose all answers that are correct.

a.
5 + 8 = 13 and 13 × 35 = 455

b.
5 × 8 = 40 and 40 + 35 = 75

c.
5 × 35 = 175, 8 × 35 = 280, and 175 + 280 = 455

d.
45 × 15 = 675 and 675 ÷ 9 = 75

im so confused

a. 5 + 8 = 13 and 13 × 35 = 455 &

c. 5 × 35 = 175, 8 × 35 = 280, and 175 + 280 = 455

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.

d, x=8

step-by-step explanation:

simplifying

4x + -5 = 2x + 11

reorder the terms:

-5 + 4x = 2x + 11

reorder the terms:

-5 + 4x = 11 + 2x

solving

-5 + 4x = 11 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-5 + 4x + -2x = 11 + 2x + -2x

combine like terms: 4x + -2x = 2x

-5 + 2x = 11 + 2x + -2x

combine like terms: 2x + -2x = 0

-5 + 2x = 11 + 0

-5 + 2x = 11

add '5' to each side of the equation.

-5 + 5 + 2x = 11 + 5

combine like terms: -5 + 5 = 0

0 + 2x = 11 + 5

2x = 11 + 5

combine like terms: 11 + 5 = 16

2x = 16

divide each side by '2'.