Answer:

Step-by-step explanation:
To solve any equation we use PEDMAS rule(this is the sequence of priorities) where:
P: Parentheses
E: Exponent
D: Division
M: Multiplication
A: Addition
S: Subtraction
In the expression
,there is only one operation is used that is multiplication.

Answer:
x = 10°
Step-by-step explanation:
8x + 50 = 130 (corresponding angles are equal)
8x = 80
x = 10°
Answer: 4,188.79 u^3
Step-by-step explanation: Volume of a sphere is (4/3)pi•r^3
10^3 = 1000
(4/3) • pi • 1000 = 4,188.79 (rounded to 2 decimals)