Sue chooses a dress and necklace to wear when she performs at a violin recital. the probability that sue selects a black dress is 40%. the probability sue selects a gold necklace is 30%. what is the probability that sue chooses a black dress and a gold necklace?

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?

Evaluate 5 + 6 · 2 – 8 ÷ 4 + 7 using the correct order of operations. a. 22 b. 11 c. 27 d. 5

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.