Which of these equations represent functions? check all that apply.

a.

y = x2

b.

y = 3x

c.

x2 - y2 = 1

d.

y2 = x2

step-by-step explanation:

first you will have to convert 3/4 into a decimal

which is .75

then you will have to divide 1.5 by .75

which is 2

no you have to divide

only 10/60 isn't equivalent

hope this : )

77

step-by-step explanation:

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24