Mr. Joaquin had $71.25 in his bank account, but then he bought some new ties and pants. After the purchase, he was in debt $25.20. What was the change in Mr. Joaquin’s account balance due to the purchases?

Which expression is equivalent to 2^4y^3

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

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