How can you find 50% of a number quickly in your head

What comes next in the sequence: 1, 3, 11, 43,

Sara was sitting in a seat at a baseball game when another ticket holder showed her she was in the wrong seat. The other ticket holder kindly told Sarah she needed to go five Rose down and three seats to the right.

A line segment is drawn from (3, 2) to (9, 2) on a coordinate grid. Which answer explains one way that the length of this line segment can be determined? A. Subtract 9 - 2. B. Subtract 9 - 3. C. Add 3 + 2. D. Add 2 + 9.

Sally has 15 quarts of milk. One quart is equal to 1 4 of a gallon. How many gallons of milk does Sally have? A) 3 3 4 B) 4 1 4 C) 15 D) 60

The scale on a map is 1:500000 two towns are 7cm apart

Probability: There are 11 shirts in your closet, 6 blue and 5 green. You randomly select one to wear on Monday and then a different one on Tuesday. You wear blue shirts both days.

If a is a nonnegative real number, then which inequality statement best describes a?

Which equation has the steepest graph? A. Y = 7x + 3 B. Y = 8x - 1 C. Y = - 10x - 4 D. Y = - 2x + 6

in 1996 there were approximately 275 students in the Delaware high school band in 2002 that number increased to 305 find the annual rate of change in the number of students in the band?

What is the value of 4 to the power of - 3