Y=9x+7, y=3x-11 i need to solve theeqayions by substition and show the work

Ollie drank 3/4 of a 16 fluid ounce bottle of juice how many fluid ounces are left

During the financial crisis of 2008, the price of a barrel of Brent crude oil fell a high of $140 per barrel to around $50 per barrel. What is the percent decrease in the price of oil that occurred during this period.

James and Hannah make cell phone cases to sell online. James can make 11 cases in 2 hours and Hannah can make 7 cases in 1 hour.

Uma função f é dada por f (x) = ax + b, em que a e b são números reais. Se f (-1) = 3 e f (1) = - 1, determine o valor de f (3).

Cups are sold 6 to a package and plates are sold 8 to a package. If you want to have the same number of each item for a party. What is the least number of packages of each you need to buy?

The graph shown here displays the distance, in miles, traveled by an airplane in a certain number of hours.

A summer camp is providing breakfast for 350 children that includes a 6 ounce serving of sausage per student. The camp can only purchase sausage in whole 1 pound packages.

What is the surface area of a conical grain storage tank that has a height of 43 meters and a diameter of 14 round to the nearest square meters

There are 8 rulers in the drawer Sara took 3 rulers from the drawer how many rulers are now in the drawer

What is the value of "c" in the quadratic equation 3x 2 + 5x + 7 = 0?