Answer:
$525
Step-by-step explanation:
72%x=378
0.72x=378
378/.72=525
Answer is 16
8 (6 1/4 x 3.2 - 18)
8 ( 6x4+1) = 25/4
8 (25/4 x 3.2 - 18)
8 (25/4 x 3.2) = 80/4 = 20
8 (20 - 18) = 2
8 x 2 = 16
X = 60 degrees
Y = 60 degrees
Z = 40 degrees
Answer:

Step-by-step explanation:
Remove parentheses by multiplying factors.
use exponent rules to remove parentheses in terms with exponents.
combine like terms by adding coefficients.
combine the constants.