Use a property of equality to solve this equation 4.5x=18

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

Brent paid for 6 avocados with a $20.00 bill. he received $10.40 in change. construct and solve an equation can be used to find the price , of each avocados

From a group of 10 men and 8 women, 5 people are to be selected for a committee so that at least 4 men are on the committee. howmany ways can it be done?