What is the expression and where do i put the parentheses on number 7

In the film, zeke the zombie slayer versus the zombies from space, zeke slayed 140 zombies. in the sequel, zeke the zombie slayer versus the zombies from space, part 2, he slayed 5% more zombies. how many zombies were slain by zeke in the sequel?

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

Solve 2^x=32 and rewrite this equation in a logarithmic form