If the cost of a telephone conversation varies directly as the length of the time of conversation, and if the cost of six minutes is $0.90, what would be the cost for a nine-minute call?

The altitude of a plane is 1600ft. what must be the altitude of a submarine so that the sum of their altitudes is 0.

How many ways are there to choose a committee of 3 people from a group of 5 people? A. 10 B. 12 C. 60 D. 70

Round $35.493 to nearest cent

4 2/3 + 4 2/3 + 3 5/6 + 3 5/6

One number is 5 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 555 , find the numbers.

0.2 is 10 times as much as

Car A gets 25 miles per gallon and costs $13,000. Car B is a hybrid that gets 45 miles per gallon, but costs $25,000. Assume you drive 15,000 miles per year and that gas will cost $4 per gallon for the foreseeable future.

Solve the inequality. Write the solution in set-builder notation. -4x-17 (greater than equal sign) - 41 The solutions are given by (xl __) (Type an inequality. use intergers or fractions for any numbers in the expressiom)

What is the equation of the horizontal asymptote f (x) = 4 (5/2) ^x+ high school question

What is the slope of the line represented by the equation below? y=-2/3x+3