Answer:
b. mark plsssssss pls pls pls
x= -35/11
1) distribute, -9x -63x = 13x+7
2) put like terms on the same side of parentheses, -9x -13x= 7+63
3) combine like terms, -22x = 70
4) solve for x, x= -70/22
5) simplify, x= -35/11
Answer:
3.45
Step-by-step explanation:
Using Pythagoras' Theorem



So, the answer is 41 cm.
C refers to the hypotenuse