I need help can someone help

What is the best reason for jacinta to have a savings account in addition to a checking account

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?