The answer is 6 hope this help
Answer:
a = 12
Step-by-step explanation:
a² + 9² = 15²
a² = 15² - 9²
a² = 225 - 81
a² = 144
take the square root of both sides
a = 12
Answer:
-2.1
Step-by-step explanation:
Answer:

Step-by-step explanation:
2+4=6
21X6=126
126+7=133
133/6= 22R1
6 years is wrong.......the answer is 6.25 years I just took the test