Which answer choice correctly solves for a and b?

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

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*