From midnight to 6:00 am the temperature rose 8C. AT 6:00am the temperature was - 20C. What was the temperature at midnight?

In order for a 25-gon to be regular

Evaluate the following expression: 3 (1,-1) - (4,2)

Mr. McDowell invested $14,000 in equipment to print yearbooks for Ardrey Kell High School. Each yearbook costs $7 to print and sells for $35. How many yearbooks must he sell before he breaks even?

Mark is comparing prices of different brands before he goes shopping. Who has the best deal on ice cream ? Brand Size & Price Turkey Hill $4.50 for 30 ounces Breyers $15.36 for 128 ounces Ben & Jerrys $2.88 for 16 ounces

The sum of two numbers is - 1. Their difference is - 7. What is the two numbers

129 is 43% of what amount?

In a class of 160 students, 90 are taking math, 78 are taking science, and 62 are taking both math and science. What is the probability of randomly choosing a student who is not taking science? 69% 44% 51% 49%

Does a parallelogram have to have an acute angle

The owner of an audio store recived a shipment of portable stereos at a cost of $102.30 each. If he sells the stereos for 181.99 each, what is the percent of markup? Round to the nearest whole percent

A pair of boots has an original price of $95. They are on sale for 35 percent off. What number can you multiply $95 by to equal the discounted price of $61.75?