HELP PLEASE

Solve this equation
2+10= 12

what is x

What is the value of x? enter your answer in the box. (cm)

Brent needs to paint a logo made using two right triangles. the dimensions of the logo are shown below. what is the difference between the area of the large triangle and the area of the small triangle? (1 point) select one: a. 4.5 cm2 b. 8.5 cm2 c. 16.5 cm2 d. 33.0 cm2

How do you find principle and simple interest