What is the value of - a

a=-4.2

A.-4.2

B. 4.2

Lan has a jar full of pennies. One penny weighs about 5*10^-3 pounds. The pennies in Ian's jar weigh a total of 10 pounds. About how many pennies are in lan's jar

John can build a fence in two days; Bill can build the same fence in five days. If john and Bill worked together, how long would it take them to build the fence?

Which Roman numeral is equivalent to the number below? 56 A. XLVI B. L C. LXV D. LVI

A pair of parallel lines is cut by a transversal: A pair of parallel lines cut by a transversal is shown. The inside bottom right angle is labeled 80 degrees.

In a comparison taste test of two juice drinks ...

What's the greatest common factor of 21 and 33?

Jackson and Israel are going out. Jackson rent a paddle boat that has a flat fee of $10 and $2 every hour after that. Israel rent out a small motorboat coast $4 initially and then $3 every hour after that.

If each student stirred for 25 seconds, what is the total number of seconds that all 25 students stirred?

How to factor 2p^4+9p^3-18p^2

When 23 is subtracted from the square root of three times a number, the result is 16. find the number?