B i think because the .50+.2 make the .52 part
Answer:
the answer is 13, because you need to divide 91 by 7.
Answer:
b = 12mm
Step-by-step explanation:
Using pythagoras theorem, you will be able to find the answer.
a² = b² + c²
15² = b² + 9²
b² = 15 ² - 9²
b² = 144
b = 
∴ b= 12mm
Answer:
40%
Step-by-step explanation:
just take a number, for example, 1, and do the math.
1 - 30% = 0.7.
1 - 50% = 0.5.
0.7 / 0.5 = 1.4.
thus the answer is 40%.
Answer:
The answer is the first one
Step-by-step explanation: