Why is math so hard but yet so easy? why is there so many different maths?

Wahts the quotient of 92 and 5

Solve for H 19+4H=1-5H

A buisness in the florida keys offers key west jet ski tours for the following rates: Time (in hours) Price (in dollars) 3/4 hour $90.00 1 1/2 hours $130.00 2 hours $180.00 Are the two quantities, time and price, proportionally related? Explain.

If 3 boxes can hold 27 books, how many boxes can hold 108 books?

Mike is 7.5 miles ahead of julia running at 5.5 miles per hour and julia is running at the speed of 6 miles per hour. How long does it take julia to catch mike. The answer is 15 hours but I am unsure as to why, can someone explain?

Four people in Abe's family are traveling to Canada for their vacation. They have four seat in the center section of the plane. Abe wants to sit next to his brother Ben.

UNIT RATE what is the unit rate of the of (3 ounces every 3/4 cup)

The principal P is borrowed at a simple interest rate r for a period of time t. Find the simple interest owed for the use of the money. Assume 360 days in a year. P=$1000 r=2% t=1 year

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Solve for n. 18 = 2|-n| Write your answers as integers or as proper or improper fractions in simplest form. n = or n =