Ineed a answer to this now!
the ratio of blue to red chips is 4 to 3. the number of blue chips are doubled and now there are 15 fewer red than blue chips. how many red chips are there?

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

The tile along the edge of a triangular community pool needs to be replaced? ?