Andrew invests 79500 for 2 years akd earns 10017 of simple interest. Calculate the interest rate.

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

What is the reflection image of (5,-3) across the line y = -x?

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed