The rectangle below has an area of x2 + 8.0 + 15 square meters and a width of 2 + 3 meters.
What expression represents the length of the rectangle?
Length
2 + 3
z? + 8x + 15

There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?