I need math help with surface area and volume of a cylinder ​

The formula for the volume of a cylinder is Volume = π * radius squared * height, specifically V = π* h. Formula for surface area for a cylinder would be Surface Area = 2 * π * radius * height + 2 * π * radius squared, SA=2πrh+2π, replace these variables with the radius and height and use a calculator. If it does not request for you to use 3.14 or 22/7 for π use the pi key on the calculator. Hope this helps!

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w