1) What is the radius of a circle? a) half the diameter  b) a line that passes through the center and meets the circumference at opposite ends c) An equipment used in submarines that send out sonars d) Idk 2) What is the diameter of a circle? a) a straight line extending from the center of a circle or sphere to the circumference or surface b) line twice as long as the radius c) the meter on a car's dashboard 3) The diameter of a circle with the radius of 2 a) 0 b) 2 c) 1/2 d) 4 e) 8 f) 10 4) The diameter of a circle with the radius of 5 a) 10 b) 2.5 c) 5 d) 8 e) 15 5) The diameter of a circle with the radius of 4 a) 10 b) 1 c) 0 d) 4 e) 2 f) 8 6) What is the radius of a circle with the diameter of 10 a) 2 b) 10 c) 5 d) 8 e) 1 7) What is the radius of a circle with the diameter of 20 a) 5 b) 1/2 c) 10 d) 9 e) 2 f) 20 8) What is the radius of a circle with the diameter of 6 a) 3 b) 2 c) 1 d) 6 e) 0 f) x 9) What is the radius of a circle with the diameter of 12 a) 2 b) 8 c) 12 d) 6 e) 4 f) 1 10) Solve for x x+2=6 a) 2 b) 1 c) 6 d) 3 e) 4 f) 5 11) Solve for x x+4=8 a) 2 b) 1 c) 6 d) 3 e) 4 f) 5 12) Solve for x 0 + x = 4 a) 4 b) 2 c) 1 d) 0 e) 3 f) 5 13) Solve for x x + 4 =2 a) 2 b) 0 c) -2 d) 6 e) 4 f) 1 14) Solve for x x - 6 = (-3) a) x b) -3 c) 1 d) 3 e) 10 f) 0 15) Solve for x x + (-3) = 6 a) 0 b) 6 c) 3 d) -3 e) 9 f) 1 16) What is 25/100 as a percentage? a) 25% b) 50% c) 20% d) 10% e) 2.5% 17) What is the percentage of 1/4? a) 20% b) 25% c) 10% d) 50% 18) What is the percentage of 1/2? a) 100% b) 20% c) 50% d) 5% e) 25% 19) What is 75% of 100? a) 7 b) 80 c) 5 d) 15 e) 25 f) 75 20) What is 50% of 8? a) 2 b) 5 c) 25 d) 4 e) 6 f) 8

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