System of equations
y=x-5
3x+y=7
solve?

What are “like terms”? why can we only add like terms?

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15