H (1) = 14

h (n) - 28/h (n-1)

h (2) =

Mr. Zelman wants to give 50% of his comic book collection to his nephew Alex. If Mr. Zelman has 800 comic books, then how many will he give to his nephew?

11^9-11^8+11^7 is divisible by 3 and 37.

Angles A and B are complementary. Two separate angles are shown. Angle A is (x + 22) degrees. Angle B is x degrees. What is the value of x? 34 56 68 79

A farmer uses 1,8 ha to grow plants from 5 ha land. He grows corn in 5/6 of the 1.8 ha land. How percent of the whole land does he use to grow corn?

How many solutions does the system have? 3x-5y=15 6x-10y=30

Would you rather Run at 100 mph or fly at ten mph?

Solve the differential equation by variation of parameters, subject to the initial conditions y (0) = 1, y' (0) = 0. 9y'' - y = xex/3

Joey rolls a regular number cube. What's the chance he rolls an even number? Record your answer as a simplified fraction using "/" as your fraction key.

You are playing a game and it is your turn to spin the spinner shown. There are four possible results: blue, green, yellow, or purple. What is the probability that you land on purple?

seventy percent of the 100 students in a middle school cafeteria bought their lunch. Some of the students that bought their lunch leave the cafeteria to attend an assembly. Now only 60% of the remaining students bought their lunch.