Writing and graphing linear equations

How do I solve this equation 8-4x+13=13

The gasoline tank and Allison's car holds 12 gallons of gas on a trip the car used one fourth of a tank of gas if the tank was full at the beginning of the trip how many gallons of gas are left in the tank at the end of the trip

A pet store donated a percent of every sale to charity. The total sales were $6600 so the store donated $330. What percent of $6600 was donated to charity ?

Evaluate the expression below when x = 5. 3x (2x - 7)

Parallelogram pqrs is shown angle s is (3x) ° angle r is 120° and angle q is (2y) ° find the value of y

What's is 7x90 it not hard it's not easy it medium

Martin charges $10 for every 5 bags of leaves he rakes. Last weekend, he rakes 24 bags of leaves. How much money did he earn?

A customer left a 66.00$ for a bill that is 9nly 55.00$. What is the tipped amount?

Find the zero of the polynomial 2x²+9x+4

M over 4 = - 13 what does m = ? ... ?