Acollege student earns $25 each are babysitting plus $50 per hour tutoring on thursday he completed two hours of babysitting and earned a total of more than $150 write an inequality that can be used to determine h the number of hours the college student tutored and solve your inequality

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

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.