Jimmy spends ¾ of an hour getting ready for school. it takes 30 minutes to travel to school. if he needs to be at school at 9: 00 am, what time should he get up?

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

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 !