Convert 91% to a decimal:

Multiply the amount of people by this decimal:

Round the number to the nearest ones value:
1809.
99
9 > 5
1809.99 -> 1810
1,810 people have reached the top of Mount Everest.
Answer:
25x2-49x4= -146
Step-by-step explanation:
i just used calculator
180 - 46 - 24 = 110
d+ 80 = 110
d = 30
answer
d = 30