The empty set (or null set) is a subset of every set. True False

The area of a rectangle is 10 cm^2. One side of the rectangle is x cm. Express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. The perimeter of the rectangle in terms of x is __ cm

8*40 = partial products

Carly needs $1,800 to buy a used car. She has already saved $1,065. She earns $12.25 per hour working as a supermarket stockperson. How many hours does she need to work at her job in order to buy the car?

A car is traveling at a rate of 60 kilometers per hour. What is the car's rate in miles per hour? How many miles will the car travel in 4 hours? In your computations, assume that 1 mile is equal to 1.6 kilometers. Do not round your answers

9,374 nearest thousand

Which one of the following equations illustrates the commutative property? 8 + 3 = 4 + 7 If 3 + 5 = a, then a = 3 + 5 4 + x = x + 4 3 (2 + 5) = 6 + 15

A mixture of 30 pounds of candy sells for $1.10 a pound. The mixture consists of chocolates worth $1.50 a pound and chocolates worth 90¢ a pound. How many pounds of the $1.50 chocolate were used to make the mixture? 15 10 12

The area of a triangle is ½ (b) (h), where the base and height are always two sides of the triangle. a. True b. False

In order to estimate the average electric usage per month, a sample of n = 81 houses was selected, and the electric usage was determined. (a) Assume a population standard deviation of 450-kilowatt hours. Determine the standard error of the mean.

Jeremiah's mom is buying lollipops for treat bags for his birthday party. She wants each of the 36 guests to have 2 lollipops each. The lollipops come in packs of 8 each. How many packs of lollipops will she need to buy?