let x = blue cars
so 7x = red cars
x +7x = 56
8x = 56
x = 56/8 =7 blue cars
7*7 =49 red cars
49-7 =42 more red cars
Answer:
A =bh
Step-by-step explanation:
2 1/2 times 5 1/4 = 13.125
45.61 inches
Use the pythagorean theorem.
