450 people are waiting in a line to buy tickets for a concert, 2 cashiers can process 3 people in 1 minute. If there are 5 cashiers, how long will it take for the last person to purchase a ticket?

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319

The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?