Answer:
(16 + 9) * 2
Step-by-step explanation:
It asks for an expression so there would be no equal sign. Since it says twice, you would multiply the value got from adding 16 and 9 by 2. Put parentheses to confirm order of operations.
Step-by-step explanation:
A , B , C is quadrilateral
D and E is not quadrilateral
Answer:
30
Step-by-step explanation:
Equation y = 3x + 210
if y = 10x
10x = 3x + 210
or, 10x - 3x = 3x + 210 - 3x
or, 7x = 210
or, x = 210 ÷ 7
or, x = 30
Answer: 18m
Step-by-step explanation: