Red marbles : blue marbles = 4:7
16 - red marbles
x - blue marbles

There are 28 blue marbles.
X=12
(10(12)-20) = 120-20 = 100
(6(12)+8) = 72+8=80
100+80 = 180
Answer:
300
Step-by-step explanation:
500 x 60% = 300
Answer: The answer is 96 square units.
Step-by-step explanation:
(Because it's 8 square units long and 12 square units wide. L x W = Area)
So you have to do 12 x 8 and you should get the answer 96 square units.