What is the surface area of a cone that has a radius of 5 units and a height of 10 units? use 3.14 for π and round your answer to the nearest whole number. 254 units2 300 units2 314 units2 384 units2

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

Asap! i'm not good math and i'm lost.

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5