A pentagonal pyramid has a height of 20m; its a regular pentagonal of 4m of side. If the area is of the base of the pyramid is 248m2 find the total surface of the solid.​

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?

To finance her community college education, sarah takes out a loan for $2900. after a year sarah decides to pay off the interest, which is 4% of $2900. how much will she pay