(6-2) x 2+4 ÷ (3+1)? step by step plz : )

Write an equation for the function that includes the points (2,100)and (3,100)

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal