A sample of students were surveyed during lunch and asked whether or not they played a sport. A student randomly chosen from the sample plays a sport. Find the probability that the student is a freshman or a senior.

Evaluate expression - 2+12-2^3/2^0*3

A man is hiking in Death Valley. He starts at an elevation of 65 feet above sea level and descends to an elevation 30 feet below sea level. How far did the hiker travel? 95 feet 35 feet - 35 feet - 95 feet

In a race in which six automobiles are entered and there are not ties, in how many ways can the first four finishers come in?

Byron puts $1,200,000 into an account that earns 3.5% APR compounded annually. How much money will Byron earn each year in interest?

Amanda brought a 6-cup of bag of shredded cheese for $6.89. She used 2.25 cups to make lasagna and 1.25 cups to make pizza. How much cheese is left?

Find the quotient of ' (2i (4+5i) (4-5i)) / (4+i) ', and express it in the simplest form.

Dr. Hall files 320 insurance claims every month. 5% if those claims are rejected, how many claims are rejected? how many are accepted?

An Uber driver charges $0.50

Problem Solving ercises: Solve each problem. CW ALL WORK. Use a separate sheet of paper (if necessary) and staple to this page. The Acme Supply Store sells a security system for $2150,00 excluding tax. They sold 12 systems.

What is x? - 4x-6=-10x