Answer:
BRAINLIEST PLZZZ
Step-by-step explanation:
5=x. angles a and c are equivalent, so you just add them together and subtract from 180, then solve for x plugging in difference of the two.
angle B=6x+4
6x=4
x=4/6
x=0.6
..I got this much...sorry if its wrong
Answer: 10
Step-by-step explanation: Remember that squaring a number is multiplying a number by itself. 100 = 10² because 10 x 10 = 100.