Prove that if m and n are integers and nm is even, then m is even or n is even. What is the best approach here, direct proof, proof by contraposition, or proof by contradiction - why?

Ozzie has a coupon for 5% off any purchase in his favorite bakery. When Ozzie stops to buy some cookies, he discovers that all cookies are on sale for 15% off the regular price. The cookies are regularly $5.89 per dozen.

Computer keyboard failures are due to faulty electrical connects (12%) or mechanical defects (88%). Mechanical defects are related to loose keys (27%) or improper assembly (73%).

The dimensions of the oven tray is 600mm by 500mm. Each cake tin is 25cm in diameter. How many cake tins can be fit on the oven tray at one time

1-3/8=2/8 Because it's basically you are doing 1-3=2

Find the range of the function. f (x) = 3x - 15 y > - 15 y ≥ 0 y ≥ - 15 All real numbers

Sum of 7x times 7 + 3x+1 and - 4x times 4-x+3

2. If y (x-1) = z then x=

John (whose line of sight is g ft above horizontal) is trying to estimate the height of a tall oak tree. He first measures the angle of elevation from where he is standing as 30 degrees.

Question: Carbon-11 has a half-life of about 20 minutes. If we start with 200 grams, how much will be left after 3 hours? A. 25 grams B. 2.5 grams C. 0.39 grams D. 0.039 grams

Emily used the number sentence 736.82 + 146.89 = to solve this story problem. A small bin held 146.89 pounds of almonds. A large bin held 736.82 pounds of peanuts.