Travis had a birthday party invited 9 friends he had 360 baseball cards how many baseball cards did each friend have if he gave away all his cards

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

The anwser cause i do not understand just plez