Marty has 54 emails. Of these, 22 are from his friends at school. To the nearest percent, what percent of the emails are from Marty's friends at school?

Which type of triangle will always have exactly 1-fold reflectional symmetry?

7/9 is it terminate or repeat

2.34+1.9+5.23 round nerest ten

Batteries of each type have lifetimes before recharge that can be assumed independent and Normally distributed.

A triangle has side lengths of 18 cm, 80 cm, and 81 cm. Classify it as acute, obtuse, or right. obtuse right acute

This math question i really dont get ... A city park contains a cylindrical artificial pond that has a radius of 7.5 m. A 2 m concrete deck will be constructed around the pond. The concrete should be at least 15 cm thick.

What is the union of the sets M = (1, 7, 10, 11, 15) and N = (5,15) ?

The price of oil, in dollars per barrel, decline last week by 3.5%. If it starts the week at $102.00 per barrel, at what per barrel price did it end the week?

Riley's family is putting a rectangular pool in his backyard. The dimensions of the pool will be 12 ft. by 24 ft. by 5 ft. The contractor building the pool needs to know how much lining he needs before starting to pour the concrete.

Find the x and y intercepts of the graph of the equation x^2 + (y-1) ^2=1