Perform the operation(s) and write the answer in simplest form.
( 1/2 + 1/3) / 15/4
a.) 3 1/8
b.) 53/90
c.) 2/9
d.) 8/75

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog