Please do question 4 and 5 only.

I will mark brainliest to well explained answers.

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?

Find the area between y=e^x and y=e^2x over [0,1]