Michael is purchasing back to school supplies. He gets a math workbook for $19.88, a calculator for $35.97, and 3 packs of pencils for $3.24 each. How much did he spend on school supplies?

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

Complete the table for different values of x in the polynomial expression -7x2 + 32x + 240. then, determine the optimal price that the taco truck should sell its tacos for. assume whole dollar amounts for the tacos.

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.