Sum of 2/3 + (-1/3) i cant find the answer

Cost of a a radio:$9.99 Selling price:$17.08 What's the markup

It takes Emma 18 minutes to type and spell check 14 pages of a manuscript. Find how long it takes her to type and spell check 77 pages. Round to the nearest whole number if necessary

Rochelle deposits $6,000 in an IRA. What will be the value (in dollars) of her investment in 15 years if the investment is earning 6% per year and is compounded continuously? (Simplify your answer completely. Round your answer to the nearest cent.)

Suppose the expression a (b) n models the approximate number of customers who applied for a credit card every month since a bank opened, where a is the inital number of customers who applied, b is the rate of increase in the number of people who

How do you know there is direct variation in an equation?

What are the factors of 34

Find the area of the rectangle 9ft and 14ft

Ms. Alvarez wants to determine the seventh graders' preferences for the location of the end-of-year field trip. Which of the samples is representative of the population?

finding the percent of increase or decrease

A stadium has two sponsorship deals. Deal A had revenue of $100,000 and expense of $10,000. Deal B has revenue of $50,000 and expenses of $20,000. What is the stadium's average profit as a percentage of revenue on these two deals?