What is 45 ones times 10?

choices are:
45 hundreds
45 tenths
or 45 tens.

David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Which of the binomials below is a factor of this exression? 16x^2+40xy+25y^2 a.4x-5y b. 2x-5y c.4x+5y d.2x+5y