Give me two equations on how to find 16-9

If a tennis ball machine can launch 60 balls every 12 minutes how many tennis balls can it launch in 2 hours

One beaver can chew through a tree that is 15 cm thick and 20 minutes if it works the same paste how long will it take one beaver to cut down a Knouff trees to create a stack one

Suppose that the correlation between midterm 1 and midterm 2 is 0.55; the mean and standard deviation of midterm 1 are 71 and 3, while for midterm 2 the mean and standard deviation are 81 and 4. There are 21 students in the class. Test, at level 0.

1) A regular hexagon is mapped onto itself every time it is rotated

Find the value of 24/25 divided by 4/5

The price of a cup of coffee has risen to $2.70 today. Yesterday's price was $2.45. Find the percentage increase. Round your answer to the nearest tenth of a percent.

Solve the equation ax+b=c for x

How to understand money creation in terms of economics?

Whats the rule for this pattern, 3,1.5,0,-1.5,-3

Chang rented a truck for one day. There was a base fee of $17.95 , and there was an additional charge of 85 cents for each mile driven. Chang had to pay $211.75 when he returned the truck. For how many miles did he drive the truck?