Which expression represents the multiplicative inverse of 2/7?
a. -2/7
b. -7/2
c. 7/2
d. 2/7

Ajar of gumballs contains 4 reds, 2 greens, and 6 blues. what is the probability of getting two blues in a row without replacement?

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?