How to solve this equation

x+8y=-18 - 6x+3y=6

A total of 528 t were sold each t cost 9$ how much money was collected from selling tickets?

Suppose that the first team member in a 3 person relay race must run 2 1/4 laps, the second team member must run 1 1/2 laps, and the third team member must run 3 5/8 laps. How many laps in all must each team run?

What is the value of n in the equation (2n + 4) + 6 = - 9 + 4 (2n + 1) ? n = the answer is just 1.

Noah visits different states every summer. This summer, he started with 2 states already visited and visits 6 states per day. Write an equation to model this situation (use d for days and s for states)

Stan and hilda can mow the lawn in 45 min if they work together. if hilda works twice as fast as stan, how long would it take stan to mow the lawn alone?

Erins water bottle holds 665 milliliters. Dylan is carrying two water bottles. Each one holds 0.35 liters. Who is carrying more water?

At the amusement park, you decide to ride the Ferris wheel, which has a maximum height of 100 meters and a diameter of 50 meters. It takes the wheel seven minutes to make one revolution.

Which scenario could be represented by the algebraic expression 365/y? Barb wants to divide a number by the days in a year. Barb wants to multiply the days in a year by a number. Barb wants to divide the days in a year by a number.

If on the 1040EZ form, the amount on line 10 is greater than the amount on line 11 in the Payments Credits, and Tax section shown below, the taxpayer will:

What is the best approximation for the area of this circle? Use 3.14 to approximate pi. 25.1 in² 50.2 in² 201.0 in² 803.8 in² Circle with radius labeled 8 in.