Andre wants to buy a backpack. The normal price of the backpack is $40. He notices that a store that sells the backpack is having a 30% off sale. What is the sale price of the backpack?
On the first math exam, 16 students received an A grade. On the second math exam, 12 students received an A grade. What percentage decrease is that?
Solve each equation.
- \(2(x-3) = 14\)
- \(\text-5(x-1) = 40\)
Select all expressions that represent a correct solution to the equation \(6(x+4)=20\).
Lin and Noah are solving the equation \(7(x+2)=91\).
Lin starts by using the distributive property. Noah starts by dividing each side by 7.
Show what Lin's and Noah's full solution methods might look like.
- What is the same and what is different about their methods?