Simplify to a single power of 2

Can someone pls ! pls answer all. no explanation needed..

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

Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-responsequestion. there are 15 questions on the test and the students have been given 55 minutes to complete itwhich value could replace x in the table? 5507-m23-m8(15-m)8(15)-m