How do i prove lines are parallel

What would be a good estimate for the number of rainy days

To function properly, a rainwater outflow pipe must drop 1 inch every 25 inches of horizontal distance. A 40 feet long rainwater pipe runs under the edge of the roof.

How do you solve 34.86 x 1.2?

A chess board is an 8 by 8 grid of squares. If you randomly choose 3 squares on the board, what is the probability that: a) they lie on the same line, excluding diagonal lines? b) they lie on the same line. including diagonal lines?

Dottie's art class began at 9:35 a. m. and ended at 1:42. How long was the art class? A. 3 hours, 7 minutes B. 4 hours, 7 minutes C. 5 hours, 12 minutes D. 8 hours, 7 minutes

Fiona is choosing flower bouquets for her wedding. The probability that a bouquet has roses is 0.98, has orchids is 0.87, or has daisies is 0.94. What is the probability that a bouquet has roses or daises?

Can you estimate this for me 4,195 x 712

Write an expression that is equivalent to 3 (2n+3) + 9

A motor with an efficiency of 75% must supply 240 j of useful work. what amount of work must be supplied to the motor? j 180 j 320 j 420 ja motor with an efficiency of 75% must supply 240 j of useful work.

Brenda is buying wallpaper remover for her bedroom. She learns that the hardware store carries three sizes of cans, 15 ounces for $4.29, 33 ounces for $8.16, and 64 ounces for $15.19.