Fully Factorise 5k^2+7k

One winter night the temperature fell 12 degrees between midnight and 5 a. m. by 9 a. m. the temperature had doubled from what it was at 5 a. m. by noon, it had risen another 8 degrees to 28 degrees. what was the temperature at midnight?

Solve for b in the formula 3a + 2b = c. b = c - 3a b = c-2 / 3a b = c-3a / 2 b = 2c / 3a

To boost holiday sales, a jewelry store in Bismarck, North Dakota, is advertising the following promotion: "If more than seven inches of cumulative snow fall on December 24, 25, 26, 27, and 28, you get your money back on all purchases made on

If there is 20 students and 20 chairs how many way for a student to sit

What's the common multiple of three and eight

How do I find the perimeter of a triangular prism?

A garden shop sells 15 " by 15 " square stepping stones for the same price as 20 " round stones. If all stepping stones are the same thickness, which option gives the most rock for the money? The area of a square stepping stone is (?) in.

What is 2 1/2 / 1/3?

42+36 = use rounding or compatible numbers to estimate the sum

Elana spent 2.50 on pineapple juice pineapple juice costs. 10 per ounce. how many ounces of pineapple juice did Elana buy?