Luis bought two pieces of wax to make candles. one piece weighed 3.49 kg, and the other weighed 4.71 kg. if wax costs $1.80 per kg, how much did luis spend altogether?

Acar dealership pays you 5% commission on your first $10,000 on car sales and 8% commission on the sale amount over $10,000 if you sold a $12,000 car how much is your commission

Witch represents the inverse of the function f(x)=1/4x-12

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?