Answer:one
Step-by-step explanation:because
1st. Try to make x by itself. Divide 12 on each side.
After it will look like this
x=12
Step-by-step explanation:
1.5 : 2.5
= 1.5/2.5
15/25
3/5
the ratio is 3 : 5
Answer:
Total distance from Mr. West to dolphin 
Step-by-step explanation:
Height of cliff on which Mr. West is standing above the surface of ocean =
Mr. West spot the dolphin under the water at a depth of = 
∴ Total distance from Mr. West to dolphin=
Adding mixed numbers

Adding whole numbers first.

Adding fractions by taking LCD.

The answer is 60,000. because it would equal six hundred thousand, and that divided by 10 is 60,000