If b = (-5, -9) and c = (5, 2), find the difference b-c
b-c= (_,_)

How to use order of operation in 20 divide by 4 multiply 5 = 1

Julian wrote the following numeric pattern on the board3,10,17,24,31,38.what numbers of julian's pattern are compound numbers.

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax