If cos x = sin(20 + x)° and 0° < x < 90°, the value of x is
°.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Darian wants to build a regulation size pool table that is 9 feet in length.he plans he ordered are 18 by 36 inches. what is the scale factor of the dilation he must use to build a regulation pool table

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax