The sum of two numbers is 42 and the difference is 18

A number patter has 75 as its first term. The rule for the pattern is subtract 6. What is the sixth term?

A 90% confidence interval for a proportion is found to be (0.62, 0.68). What is the sample proportion? A. 0.64 B. 0.65 C. 0.68 D. 0.66

Example of numerical expression

A GE Lightbulb is suppose to last for 1200 hours. In fact light bulbs of this type last only 1,185 hours with a standard deviation of 70 hours. What is the probability that a randomly selected light bulb will have an average life of at least 1,200?

A box contains 12 transistors, 3 of which are defective. If 3 are selected at random, find the probability? All are Defective = None are defective=

What is the value of x in the equation, when?

One box of cake mix makes a maximum of 24 cupcakes. If the caterer needs 300 cupcakes for the event, what is the minimum number of boxes of cake mix he will need?

In a recent poll of 2,000 households, 29% had pets. How many households did not have pets

Sarah cut off 1/8 of 48 inch piece of ribbon. Jane cut off 1/9 of a 36 inch piece of ribbon. They compare their cut piece. Whose piece is longer? How much longer

If the arc on a particular circle has an arc length of 14 inches and the circumference of the circle is 84 inches what is the angle measure of the arc