There are 4 boys for every 10 students in Ms. Day's math class. If there are 30 girls in her class, how many boys are there? (with explanation)

Linda Mills and Sherry Somers sold 459 tickets for the Advertising Club's raffle. If Linda sold 8 times as many tickets as Sherry, how many did each sell?

A rectangle has a height of 7 and a width of a^4+5a^2+4. Express the area of the entire rectangle.

The random variable X is normally distributed. P (2045). Find the mean of X. Find P (X<45). Find the standard deviation of X.

The weather man announced that there was a temperature drop Of 8 degrees from yesterday to today. How would this be represented as an interference

The rugs in an office are shaped like parallelograms. Each has a base of 18 inches and a height of 10 inches. What is the area of the rug

Evaluate the expression give the value of the variable ... 11+r; r=7

How many units of insulin are in 0.75 ML a regular U - 100 insulin

The probability that a person has a certain disease is 0.03. Medical diagnostic tests are available to determine whether the person actually has the disease.

Eight thousandths of thirty five million

14. You buy some furniture. The coffee table costs $189.99, the loveseat costs $249.95, the sofa costs $493.68, and 2 chairs cost $98.75 each. Sales tax is 7.25%. How much is your total purchase? $1,032.37 $1,213.13 $1,107.22 $1,131.12