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!

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.