X is 21 more than 21

Which statement is true about the circumference of a circle? A) The circumference is equal to the radius of the circle. B) The circumference is equal to the diameter of the circle. C) The circumference is found by multiplying Pi by the radius.

Only one counterexample is needed to prove a statement false. True False

Deanna has 4 quarter 3 dimes and 3 nickels in her purse. She reaches into her purse and randomly grabs two coins one at a time. What is the probability deanna will first grab a quarter and then without replacing it grab a nickel

A tourist starts to walk up a mountain path that is 31 miles long at the rate of 4 miles per hour. After walking for a while, he gets tired and decides to get a taxi. The taxi gets him to the top travelling at a constant speed of 50 mph.

The product of a number, x, and six is four more than the product of the number and three-eighths.

If line a is parallel to line c, and line c is parallel to line f, and lines c and f are different lines, which of the following statements is true? A. Line a is perpendicular to line f. B. Line a intersects line f. C. Line a is parallel to line f.

The tens digit of a two digit number excedds the unit digit by 5. if they are reversed b the new number is less by 45. if the v sum of their digits is 9 find the numbers

There are 10 players on a softball team how many ways can the first three batters be chosen

What value of t makes the following equation true? 3 (t-2) = -1

Nine is a factor of a number which statement must be true