A fish finder shows a large fish at 20 feet below the surface of the water and a smaller fish located 6 feet below the surface of the water. CIRCLE all the expressions that are
equivalent to the distance between the fish.
|– 20 + (– 6)|
|– 20– (– 6)|
|– 20– 6|
|– 6 + (– 20)|
|– 6– (– 20)|

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?