If two lines are perpendicular, then they form four angles that are each 90 degrees.

true or false?

Simplify 9 (1 + 8g) using distributive property

Estimate the difference 299-61

What is the least common multiple of 12, 20, and 18?

What plus what equals 7 also equals - 30 by multiplying?

Which of the following is a valid form of evidence in deductive reasoning? a. property b. pattern c. assumption d. conjecture

Marathon Hours, Miles 0,0; 1,6; 2,11; 3,15; 4,21; 5,26.2. Cayla ran a marathon. The table shows which mile Cayla had finished at the end of each hour. Find Cayla's rate in miles per hours from hours 2 to hour 3 of the marathon.

Two of the desserts are sugar/free. Three of the drinks are sugar-free. A meal deal combination is selected at random. Work out the probability that both the desserts and the drink are sugar free. Give your answer as a fraction

Barbara babysat for 3 1/4 hours and earned $19.50. What was her hourly rate?

A city lot measures 100 feet x 250 feet. The city zoning ordinance specifies that maximum lot coverage is 40% of the lot. What is the maximum size for a building on this lot?

Find the quotient. 8,489:9