Peyton is a sprinter who can run the 40 yard dash in 4.5 seconds. He converts his speed into miles per hour, as shown below: Which conversion factor is written incorrectly to convert his speed to miles per hour?
40 yd/4.5 sec
3ft/1yd
5280ft/1 mile
60sec/1min
60min/1 hour

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

You are on a cycling trip around europe with friends. you check the weather forecast for the first week. these are the temperatures for the week. sun mon tues wed thurs fri sat 16°c 20°c 24°c 28°c 28°c 23°c 15°c what is the mean temperature forecast for the week?

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).