His location would be 20 feet above the sea level because...
30+-10= 20 because adding a negative to a positive is basically like subtracting.
Can have a brainliest answer now please?
It need to be at least 50 ft long and 50 ft wide.
Answer:
x = 5
Step-by-step explanation:
im too tired to explain just trust me
(5) + 2 = 7
2(5) + 3 = 13
13 * 7 = 91