Suppose y varies directly as x, and y = 21 when x=3. find y when x=42

How is the slope of a line calculated?

Sam can ride his bike 4.5 kilometers in 9 minutesand Amanda can ride her bike 3.6 kilometers in 6 minutes which Rider might go farther in 1 minute

Ingrid spends $120 on car repairs. Which integer represents the amount of money Ingrid must earn in order to create a zero pair?

Convert tge following fraction to decimal and then to percent. Round the decimal to three places before converting to percent 9/10

On the blue print for a house a rectangular balcony is 1 inch wide and 1.75 inches long. if the actual length of the balcony is 7 feet which of the following is the perimeter of the balcony

2. The usual toll charge over the bridge is $1.50. If you purchase a special sticker for $10.50, the charge is only $0.80. At least how many trips over the bridge are needed before the sticker would cost less than the toll charge?

Numbers like 10 100 thousand and so on are called what

Jack deposited a check into his account for $429.14. Then, he withdrew $429.14 in cash in the same transaction. What is the net amount of Jack's transaction?

The right rectangular prism is packed with unit cubes of the appropriate unit fraction edge lengths. Find the volume of the right rectangular prism in centimeters. (Figure not to scale)

In a group of 45 children there are four times as boys as girls. how many girls are there?