Solve for the variable in the following proportion.

4 is to 5 as 10 is to a

8

12

12.5

20

Round 0.01234 to 2 significant digits

If it takes 5 hours to do 2/3 of a job, how long will it take to complete a job?

Maureen worked 28 hours last week. Her hourly rate is $7.12. What did she earn last week

If cookies sell $1 and oranges for 75 cents, how many of each were sold for a total of $8.25

Assume poland's currency (the zloty) is worth $.17 and the japanese yen is worth $.008. what is the cross rate of the zloty with respect to yen? that is, how many yen equal a zloty?

How much work is done on an object if 6 newtons of force are applied to the object and it moves 3 meters? A. 0.5 J B. 2 J C. 3 J D. 18 J

Can a monomial have a negative exponent

What is make a ten to add 7+4=

The array has 32 squares. what are the side

The sum of three consecutive integers is 81. What is the largest integer? A. 28 B. 27 C. 26 D. 25