The sum of the digits of a two-digit number is 7. the tens' digit is one more than twice the units' digit. find the number

52

Step-by-step explanation:

5+2=7

and

5 = 2×2+1.

apparently an answer needs to be at least 20 characters long

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !