The track team had 50 girls on the team last year. This year the team had 35 girls. What is the percent of decrease of the number of girls on the team from last year to this year?

30%

Step-by-step explanation:

(50 - 35)/50 x 100 = (15/50) x 100 = 30%

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

step-by-step explanation:

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8