A boat whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is:

How do you solve (-3) 6^5

Individual housekeepers may clean about how many hotel rooms each day on average? 4-6 10-12 15-20 30-40

Which of the following happens when a company goes public

How do I figure out 221 : 0.0001

Your car averages 380 miles on a 14-gallon tank of gas. you run out of gas on a deserted highway, but have a half gallon of lawn mower gas with you.

Martha always tries to exercise at least 30 minutes a day. Write an inequality to represent the number of minutes Martha exercises each day.

A swimming pool has perimeter of 72 feet. The short sides measure 16 feet. What is the length of the longer sides of the pool

At the beginning of an environmental study, a forest covered an area of 1500km2. since then, this area has decreased by 7.1% each year. let t be the number of years since the start of the study. let y be the area that the forest covers in km2.

What are the transformations of f (x) = -7 (x-9) ^2+3

A farmer water 3/8 of a field what percentage is equivalent to the fraction of the field the farmer wanted?