Answer:
-0.4x - 0.30 or 
Step-by-step explanation:
Change all the fractions to decimals.
-2/5 = -0.4 Distribute that over x and 0.8 1/50 = 0.02
you get -0.4x -0.32 + 0.02
Change all the decimals to fractions.
0.8 is 8/10 so -2/5 times 8/10 is -16/50
-2x/5 - 16/50 + 1/50 add or subtract the fractions to get -15/50 Then reduce (÷5)
-2x/5 - 3/10
Answer:

Step-by-step explanation:

The volume of an object stays the same no matter how you shape it, so the volume of the new sphere is the sum of the volume of the two metal spheres assuming that nothing is lost during the process of creating the new sphere.
Answer:
measure 3 equals 121 degrees
Step-by-step explanation:
Measure 2 and 3 make a 180 angle and you subtract 59 from 180 and you get 121.
6.739 = 6.7 to the tenth place
52.192 = 52.2 to the tenth place
0.61 = 1 to the unit(ones) place
348.508 = 348.51 to the hundredth place