In april 2011, an online social networking site had approximately 200 million registered
accounts. in august, the number of registered accounts had risen to 3.62 x 108. in scientific
notation, how many more users were there in august than in april?
a 1.62 x 108
b 1.62 x 10
c 1.62 x 10
d 1.62 x 105

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

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

What are the values of each variable in the diagram below?