Cindy saves $420 each month . her monthly salary is $ 2100. what is the ratio of the amount cindy saves to the amount she earns each month ?
a. 1: 5b) 1: 4c) 2: 3d) 5: 1

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

5/6+7/8what is the answer sealsdbdbshd

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