Which value must be added to the expression x2 + 16x to make it a perfect-square trinomial?

8

32

64

256

V-10=-9 it's for math

A rectangular greenhouse has an area of 6,480 square meters. Its length is 120 meters. The width of the greenhouse is meters. If each flower bed needs an area of 240 square meters, the whole greenhouse can hold flower beds.

What's the fraction of 65% in its simplest form

Simplify. 13 (1-14) 2 Enter your answer, as a simplified fraction, in the box.

What is the area of a Diameter 3 yards

Mrs. Barry has 27 watches on display her store. Mr. barry says that she can make only 1 row with all 27 watches. Is mr. Barry right? Explain

There are 16 boys and 12 girls in the spanish club. four more boys joined the spanish club if ratio of boys to girls did not change, how many girls joined the spanish club?

There are 9 red and 6 green marbles in a bag. A child reaches in the bag and randomly takes one marble. What is the probability pf that child getting a green marble

Write these values in order, starting with the smallest. 72%, 0.6, 21/25, 0.75, 1/2

A veterinarian needs to know an animal's weight in kilograms if 20 lb is about 9 kg in a dog weighs 30 lb use a ratio table to find the dogs weigh in kilograms explain your reasoning