Find the sum.-1/2 (7z 4) 1/5 (5z-15)

Chris went on a bike ride of 24 miles. He realized that if he had gone 8 mph faster, he would have arrived 4 hours sooner. How fast did he actually ride?

A stadium brings in $16.25 million per year. it pays football-related expenses of $13.5 million and stadium expenses of $2.7 million per year. whatis the stadium's current profit margin

115,785 divided by 93

How do graphs of y=1/x and y=5 / (x+6) compare? I know the second graph shifts to left by 6 units but does it move down and how many units?

Bill Roe visited his local bank to see how long it will take for $1,000 to amount to $1,900 at a simple interest rate of 12 1/2 percent. Could you provide Bill with the solution to his problem in years?

Function f (x) = ax^{3} + bx - 1, where a and b are constants. In addition, f (2) = 3. Find the value of f (-2).

How do you know that 35x5=5x35 without finding products?

A sample of 49 observations is taken from a normal population. the sample mean is 55, and the sample standard deviation is 10. determine the 99 percent confidence interval for the population mean.

How many meter of cloth is needed if Aling Luding to make 25 pillowcase if each pillowcase needs 95 cm long cloth?

A planet's radius is approximately 1,534 mi. About two-thirds of the planet's surface is covered by water. Enter an estimate for the land area on the planet. Round the answer to the nearest million.