Answer:
8
Step-by-step explanation:
5 1/4 =5.25
42/5.25 = 8
8×5.25 = 42
5 1/4 of 800 is 42
Change 5 1/4 into a decimal = .0525
(.0525)x =42
divide both sides by 0.0525:
x = 42 / .0525
x = 800
5¼% of 800 is 42
