Answer:
-10
Step-by-step explanation:
Use PEMDAS (Parenthesis, Exponents, Multiplication/Division, Addition/Subtraction)
8 + (-2) · 9
8 - 18
-10
(r^10)-2 would be the expression
Answer:
10 m
Step-by-step explanation:
If the area of a square is 50 m2, then the length of each side will be 
m, to get the diagonal length, after dividing the square by joining the points of the diagonal with a line, it forms two right angles with length m each.
the diagonal length represent the hypotenuse side of each of the right angle, knowing the pythagoras theorem:
, so we have:
diagonal = 10 m
15 red, 13 white, and 10 blue. I divided 38 by three and just sorta guessed from there if that makes any sense :P hope I helped!
