What is the value of x?

9x+2y=-11

X-2y=-19

How can you use models to explain why 3.1 = 3.10

Juan is baking muffins for the school bake sale. He needs 1 1/2 cups of flour to make a batch of blueberry muffins. He needs 2 3/4 cups of flour to make a batch of banana muffins.

dr. hong prescribed 0.019 liter more mdicine than dr. T dr. E prescibed0.02 less than dr> hong who prescribed them most who prescibed the least

Keisha has 28 video discs, which is 8 less than 4 times the number of video discs in Minnie's collection. How many video discs does Minnie own?

Which is heavier: 500 pounds of feathers or 500 pounds of lead?

There are 3 strawberry ice creams, 4 chocolate ice creams, and 7 vanilla ice creams on a tray. barbara selects 2 ice creams at random without replacement. what is the probability that she selects 2 chocolate ice creams?

Sandy works at a store that sells clothing accessories. The supply function for scarves is P = Q-9, where Pis the price and Q is the quantity of scarves. If Sandy sells the scarves for $12 apiece, how many scarves will the store supply?

Store A: $25 for a 45 minute lesson Store B: $30 for a 1 hour lesson Store C: $45 for a 1.5 hour lesson Store D: $80 for three 1 hour lessons Julie wants to purchase swim lessons for her son. There are four different stores that offer swim lessons.

What percent of 123 is 140

What is a fraction of a pound in ounces?