True or false

If an original expression is defined for all values of x, you do not need to specify the absolute value in the simplified expression

Caroline bought 20 shares of stock at 10 1/2, and after 10 months the value of the stocks was 11 1/4. If Caroline were to sell all her shares of this stock, how much profit would she make? A: $15 B: $10 C: $210 D: $225

Solve the formula P = 2L + 2W for L

A certain college randomly selected 30 freshman students who completed college algebra during their first semester.

Real Simple, A Boat traveled 112 miles downstream and back. The trip downstream took 4 hours. The trip back took 8 hours. What is the speed of the boat in still water? What is the speed of the current? An Explanation how would be much appreciated.

Evaluate 8j - k+14 when j = 0.25 and k = 1

george is driving at an average speed of 62 miles per hour. write an expression that would give his distance traveled for h hours. Make a table that records his distance for 3, 5.5., and 8.5 hours

There were 145 children that went to the park today and 60% of the children were boys. How many of the children were girls at the park? A. 58 B. 85 C. 87 D. 232

Does anyone know the answer to this question w (t) = 3t-1; t=4.2

Evaluate the following expressions for r = 13. a) (8 + r) x 3 b) 5r + 97

Water safety standards in southern California suggest that if a concentration of adenoviruses in the water is more than 1,000 per liter, further testing would have to be done to determine if the water was hazardous.