in a contest, each finalist must answer 5 questions correctly. Each question is worth twice as much as the question before it. The fourth question is worth $1,600. How much is the first question worth?

There are 85 children in a school choir. There are as many boys as girls in the choir. How many boys are in the choir?

5. In 23 years the city of Cincinnati grew from 250 to 3,000. How much of a percentage increase is this?

A boat's crew rowed 48 kilometers downstream, with the current, in 4 hours. the return teip upstream, against the current, covered the same distance, and it took 8 hours. find the crew's rowing rate in still water

The product of six and nine times a number multiplied by three. Write the expression

What is the value of 6,035. underline digit is 3

Let g (x) = - x2 + 4x + 2. Find and simplify g (-2).

An amphitheater charges $75 for each seat in Section A, $55 for each seat in Section B, and $30 for each lawn seat. There are three times as many seats in Section B as in Section A. The revenue from selling all 23,000 seats is $870,000.

2d-15.8=-3.7+d what equals d

The sum of two integers is 9 and the sum of their squares is 53. Find the integers.

If cosx is approximately 0.9511, what is the measurement of x to the nearest degree? Approximately, what is the sin of the angle that is complementary to x?