What happens to the mean of the data set shown below if the number 3 is added to the data set? A. The mean increases by 2.
B. The mean does not change.
C. The mean decreases by 0.25.
D. The mean increases by 1.

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?