Find each unknown number.
a. 12 is 150% of what number?
b. 5 is 50% of what number?
c. 10% of what number is 300?
d. 5% of what number is 72?
e. 20 is 80% of what number?

Find each unknown number a 12 is 150 of what number b 5 is 50 of what number c 10 of what number is 300 d 5 of what number is 72 e 20 is 80 of what number class=