The Times of sarah's first swim lengths are 27 seconds, 35 seconds, and 31 seconds. in how many seconds must length four be completed so the mean is 30 seconds

Maria walks 12 miles in 3 hours how many miles does she walk per hour

Select the correct answer. Edison has a sales Job and receives $45,448 as his annual pay, plus commission. His company pays him a commission of 15% on his total sales.

two fishing boats leave a marina at the same time. One boat travels north at a speed of 12 miles per hour. The other boat heads east at a speed of 9 miles per hour. Approximately how far apart are the two boats 15 minutes after they leave the marina

On February 13th you deposit you're bank account. on April 12th you withdraw $125 and on May 6th you deposit$25. how much money do you have in you're bank account?

How on will i be if i was born in 1990 in 2054?

Factorise then following X^2-3x+2

Mr Murray's distance away (in meters) from his classroom after t seconds can be modeled by the following equation: M (t) = 3.5t + 2. After 3 seconds, how far is Mr Murray away from his classroom?

The upper arm length of females over 20 years old in a country is approximately Normal with mean 35.8 centimeters (cm) and standard deviation 2.5 cm. Use the 68-95-99.7 rule to answer the following questions. (Enter your answers to one decimal place.

The radius r (cm) of a circle is related to time t (seconds) by the equation r=0.4t + 1.5. (a) Calculate the initial value of the radius. (b) Find the rate of change of r.

Write in expanded form six hundred twenty six and fourteen thousandths