Use substitution to solve each system of equations

c-5d=2

2c+d=4

What is the value of s?

Item 3 Monique has 3 eggs and needs to buy more. A store has 6 dozens of eggs. Monique needs to buy at least 2 dozen. The number of eggs Monique will have after purchasing x dozen is represented by a function.

What is 81/45 in simplest form

Nikita borrows 1 11 superhero book and 1 11 dragon book from the library. The superhero book has a mass of 2 0 0 200200 grams. The dragon book has a mass of 3 1 0 310310 grams. What is the mass of the books Nikita borrowed?

Add 7 to k, then add j to the result

The given expression represents the area. Find the side length of the square. 64r^2-144r+81

The area of a rectangle is 44 m² The width is 3 2/3m

Olivia is organizing a bake sale, and their goal is to raise at least $500. So far they have raise $210.

what setting should be used when doing sum and difference identities with a calculator degrees or radians

If a circumference is 18.84 what is the area rounded to the nearest hundredth