Solve each problem. Type the correct answer in each box.
d. 13 is 50% of what number?
e. 18 is 120% of what number?
f. 21 is what percentage of 30?
%
Explain or show your reasoning for parts d, e and f.
Type your response in the space below.

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

In angle pqr find the measure of

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83