An identity thief watches someone enter a 4-digit PIN and manages to see the first two digits. If the thief tries guessing the PIN, how many possibilities would there be?

a.

81

b.

90

c.

100

d.

200

What substitution should be used to rewrite 6 (x + 5) 2 + 5 (x + 5) - 4 = 0 as a quadratic equation?

How to write 8,880 in expanded form

How do i write a linear equation in slope intercept from for the following situation, through: - 1,-1, perpendicular to y=-2/3x 4?

6, 9, 15, 24, 36, 51,?

The length of a rectangle is units greater than twice its width. If its width is w, which expression gives the perimeter of the rectangle in terms of w? 2 (w) + w w + w 3w + 6w + 5

What is a whole number in x / 113

The ramp below has a height of 26 feet and a slant length of 30 feet. What is the width of the ramp in feet

A rectunglar pool is 7ft wide. it is 3 time as long as it is wide

The variables x and y are inversely proportional, and y=2 when x=3. What is the value of y when x=9?

Sandy has 16 roses, 8 daisies and 32 tulips. She wants to arrange all the flowers in bouquets. Each bouquet has the same number of flowers and has only one type of flower. What is the greatest number of flowers that could be in each bouquet?