HELP PLEASE

Solve this equation
2+10= 12

what is x

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Write the equation in logarithmic form m^x=n