A shop owner blends three types of tea, a, b and c, in the ratio 6:4:7. if the mass of tea c in the mixture is 28 kg, find the difference in the masses of the other two types of tea.

2. If two lemons cost 15 cents, how many can be bought for 60 cents?

Solve the equation: (x+1) (x - 2) = 0 Enter the solution with the lowest value.

Find the result when 6n + 9 is subtracted ftin 2n - (6n + )

The number of mice in the box plus 5 more adds up to 16 mice

Which of the following is the complete factorization of 10x - 3 - 3x 2

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 43 ounces and a standard deviation of 7 ounces. Use the Empirical Rule.

Sam painted the walls shown. He took 12 hours to paint the walls. If Sam took the same amount of time to paint each wall, how long did he take to paint 1 wall?

The position of an object at time t is given by s (t) = 7 - 14t. Find the instantaneous velocity at t = 7 by finding the derivative.

every month, omar buys pizzas to serve at a party for his friends. In may, he brought three more than twice the number of pizzas he bought in April. If Omar bought 15 pizzas in may, how many pizzas did he buy in April

Forty-three is 7 less than twice a number. What is the number?