ILL GIVE BRAINLIST FOR THE FIRST TO GET #10 RIGHT!!

Im not sure but i think is 20 or 15 im not positive but i think it's either one

Step-by-step explanation:

There are 16 girls

Step-by-step explanation:

if there are 40 boy and there ratio is 5 its multiplied by 8 so we do the same thing to the girls ratios

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.