The children's museum has a large fish tank with the dimensions shown. the tank does not have a cover. what is the surface area of the fish tank?

6 feet high 10 feet wide 5 feet long

a) 21 square feet

b) 230 square feet

c) 280 square feet

d) 300 square feet

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.