Amy runs a pizza store. The monthly cost of the store rental and business permit is $$1,000.$ Amy spends $$4\mathrm{.}5$ every pizza sold. She sells each pizza for $$18,$

$1)$ What the contribution margin ratio?

$2)$ Predict operating income for a month in which Amy sells $1,500$ pizzas.

$3)$ How many pizzas does Amy need to sell each month to breakeven?

$4)$ How much sales revenues doe Amy need to generate each month to breakeven?

$5)$ How many pizzas does Amy need at least to sell each month to earn a target profit of $$1,200$ a month?

$6)$ How much sales revenue does Amy need to generate each month to earn a target profit of $$1,500$ per month?