Which unit rate is the lowest price per ounce? choice a: 25 ounces of potato chips for $3.49 choice b: 40 ounces of potato chips for $4.79 choice a choice b the unit rates are equal. the unit rates cannot be determined.

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

Will give brainliest sum of arithmetic series (sigma notation) find the numerical answer to the summation given below. (image shown below)

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers