Peter bought 10 packs of pencils. Each pack has 9 pencils in it. If he lost 16 pencils, how many pencils does Peter have left?

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of