C) 75% of X is 12
What is 100% of X?

if this is really you s much. i only have 3 points left and i have 2 questions to ask

incomplete question. how do you expect anyone to you when you do not post the question in its entirety?

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm