The prime factors are 2 x 3 x 3 x 5.
90
90
multiply the number by .90 or just.9 like 90% of 100 is 90
Multiply 90 x .63= 56.7 is 63% of 90
66150
4050
63X90=5670
12
270
The two numbers that multiply to 90 and add to 1 are 10 and -9. When multiplied, 10 * -9 equals -90, and when added, 10 + (-9) equals 1.
There are 16 ounces in a pound, so multiply 16 x 90 to get 1440 ounces in 90 pounds.
Multiply by 3