Tracy's mother is six times as old as she. If the sum of their ages is 28 years, how old is Tracy?

Alex skateboarded 2 1/3 miles. Carla skateboarded 4 1/5 miles. How much farther did Carla board then Alex

Find the 100th term in the arithmetic sequence -19,-14,-9,-4,1 ...

ROB ran 286 miles in 2.5 months. LUKE ran 278 miles in 2 months. How much did Rob and Luke run a day? Who ran the most miles?

What is 78% of 60 46% of 70

Put this number in order from the largest 9.4,9.07,9.256

A three-dice is a six sided dice with only the numbers 1, 2 and 3. The usual numbers 4, 5 and 6 are replaced by 1, 2 and 3 respectively. 4 three-dice (with sides labeled 1, 2, and 3) are rolled and the numbers face up on the 4 dice are recorded.

Judy is making scarves to give to her family as gifts. She needs to make 5 scarves and each scarf is 3.75 feet long. How many yards of fabric does Judy need to buy?

Find the margin of error for a 95% confidence interval for estimating the population mean when the sample standard deviation equals 100 , with a sample size of (i) 484 and (ii) 1764. What is the effect of the sample size?

5 A dangerous criminal has escaped from prison. The police believe he could not have traveled more than 10 mi in any direction from the prison. How many square miles must be searched?

Give the locations of the 2 mountain ranges