Does this apply to debit card purchases are "signed" for with a pin number

The sum of two numbers is 9. And the sum of their reciprocals is 1/2. find the numbers

A box contains 5 red and 5 green marbles. if 5 marbles are drawn without replacement, what is the expected number of red marbles

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 6, Q1 at 7.5, median at 8, Q3 at 23, max at 32.

Jenny's frog made one jump of 2.34 meters. Christina's frog made jumps of 1.22 meters and 0.89 meters. How much further did Jenny's frog jump in one jump than Christina's frog in two jumps combined? 0.23 m 0.33 m 1.12 m 1.45 m

Lisa watches the vehicles that passes buy in front of he apartment building. she has counted 15 vans and 30 cars. what is the approximate probability that the next vehicle lisa sees is a van? A) 25% B) 0.5 C) 1/3 D3/2

Subtraction of two real numbers may be defined of what operation

Suppose there are three consecutive intergers. if two times the first is added to twice the middle, the results is 69 minus the largest number. what is the largest number?

Triangle ABE is similar to triangle ACD. AB = 10, BC=12, BE=4, and CD=y. Find y.

How do solve y=5x-8 y=-6x+3 by elimination

What's the simplified form of 2x + 3 - x + 5? A. 3x + 8 B. x + 8 C. x - 8 D. x - 2