What is the constant term in the expression 8xy − 9x2 y − 5x + 6? −9 −5 6 8

Alawn mower manufacturer incurs a total of 34,816 in overhead costs and 388 per lawn mower in production costs. how many lawn mowers were manufactured if the average cost of productions is 660

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

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?