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

What were mkh company's cash flows from (for) operating activities in 20x1? $(180,300) $233,100 $268,200 $279,400?

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Asap i need it now choose all the answers that apply. sex-linked disorders affect males more than females affect females more than males can be carried by females, without being expressed are always expressed in males are caused by genes carried on the x and y chromosomes