A14-ounce box of cereal sells for $2.10. what is the unit rate.

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

Ill mark the brainliest if you me with the these three questions 7,8,9

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