When dividing with decimals why is it necessary to multiply both the divisor and the divedend by the same power of 10

To make it a whole number, we will multiply both the dividend and the divisor by 1,000. Multiply the divisor by a power of 10 to make it a whole number. Multiply the dividend by the same power of 10. Place the decimal point in the quotient.

step-by-step explanation:

how many centimeters did the level of the salsa go down by?

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.