PLEASEE HELP. *EXTRA POINTS* DONT SKIP:((

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

The sum of two numbers is 58. the first number is 8 less than half the second number. let  c  represent the first number. let  drepresent the second number. which statements about solving for the two numbers are true? check all that apply. the equation    represents the sum of the two numbers. the equation    represents the sentence “the first number is 8 less than half the second number.”the equation    represents the relationship between the two numbers. the equation    represents the sum of the two numbers. the number  d  is 14.the number  c  is 44.the number  c  is 14.the number  d  is 44.