In a science experiment, the temperature of a substance is changed from 42 degrees Fahrenheit to - 54 at an average rate of-12 degrees Fahrenheit per hour. Over how many hours does the change take place

4/15 of the 315 members of a book club are males how many female members are there in the club

Solve using substitution. x + 5y = - 19 x - 5y = 1 Submit

If a chickens heart beat is 1375 in 5 minutes how much does it heat beat in 1 minute

What times what eqals 40

Layla and Carson work at the same store. Last week, Layla worked 8.75 hours, which was 25% of the amount of the time that Carson worked. How many hours did Carson work last week

A mother earned $ 8750.00 from royalties on her cookbook. She set aside 20% of this for a down payment on a new home. The balance will be used for her son's future education.

Which is NOT a property of a parallelogram? Diagonals bisect each other Diagonals are congruent Both pairs of opposite Both pairs of opposite sides are parallel angles are congruent

It takes Bethany 8 hours to proof a chapter of Hawkes Learning Systems' Statistics book and it takes Nina 7 hours. How long would it take them working together? (Round your answer to two decimal places.)

How many 40 tens make hundreds

Find the center and radius of circle of x^2+y^=36