Factor the following polynomial. 49y2 - x2 A. (7y - x) (7y + x) B. (7y + x) 2 C. (7y - x) 2 D. does not factor

Hannah buys 2 1/2 pounds of dried fruit for $1.50.

Using the guess and check technique, find two numbers that satisfy both conditions. The sum of the two numbers is 56. The second number is seven less than two times the first number. What is the value of the first number, x? A. 19 B. 21 C. 31 D. 35

Phil has to pick two sports to write a report on. If there are 8 possible sports to choose from, how many different combinations of pairs are possible? A. 28 pairs B. 12 pairs C. 18 pairs D. 10 pairs

You have designed an experiment manipulating room temperature (cold, warm, or hot), noise level (quiet or loud), and room color (pink, blue, or black). How many main effects are possible?

What happened when a bunch of numbers got lost in the desert and spent years wandering from oasis to oasis?

What is the measure of a) 160 degrees b) 20 degrees c) 19 degrees d) 161 degrees

Find the distance (-1,2) (7,8)

Which of these is likely to be his next step in constructing the perpendicular line?

Fractions is greater than 2/5 and less than 3/5?

Their sum is 7, and their product is 15