given figure is a solid made up of a cone and hemisphere. the total height of figure is 20cm and slant height of cone is √218 cm. if the centimetres measure of the radius of the base is a multiple of 7 find the volume​

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.

Write the standard form of an equation with (see picture below)