What is - 30:2? I've been trying to figure this out ... do I do it on calculator, if so how?

Hilda rented a canoe. The rental rate is $20 flat fee and $12.50 per hour. She was charged a total of $45. Which equation could be used to find h, the number of hours she rented the canoe? A 20 - 12.5h = 45 B 20 + 12.5h = 45 C (20 - 12.5) h = 45 O.

Determine if the statement is always, sometimes, or never true. The opposite angles of a parallelogram are congruent. alwayssometimesnever

Jonathon's Yo-Yo has a string that is three and a half feet long. If Jonathon cuts six inches off the string, how many feet will the string be? A. 3 feet B. 2 feet C. 2.5 feet D. 4 feet

Order the following numbers from greatest to least: 2, - 1, 2.58, - 1.65. - 1, - 1.65, 2, 2.58 2.58, 2, - 1.65, - 1 2.58, 2, - 1, - 1.65 - 1.65, - 1, 2, 2.58

The equation of the sum 42 and a number n is equal to 51

What is 200 divided by 23,000

Evan has $0.45 worth of pennies and nickels. He has a total of 21 pennies And Nickels All together. Determine the number of pennies in the number of nickels that Evan has.

A car burns 40% of the oil in its engine. The car contains 6000 mL of oil. How much oil does the car burn?

Compute the instantaneous rate of change of g (x) = x^2-1/4 at x=1

Scott needs to fill a 3-gallon pitcher with water, but it won't fit under the faucet. He fills a 1-quart container with water from the faucet and then pours the water into the pitcher.