Plz ! can someone with 2 a and 2 b ?

Asoccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.1 in

For the equations below which statement is true ? -2x=14 6x=-42

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points