Select the correct answer. A mistake was made in the steps shown to simplify the expression. Which step includes the mistake?
9/2 + 3(4 – 1) – 7 + 23
Step 1: = 9/2 + 3(3) – 7 + 2^3
Step 2: = 9/2 + 3(3) — 7 + 8
Step 3: = 15/2(3) – 7 + 8
Step 4: = 45/2 - 7 + 8
Step 5: = 31/2 + 8
Step 6: =47/2
A. Step 1
B. Step 4
C. Step 5
D. Step 3

Askyscraper is 396 meters tall. at a certain time of day, it casts a shadow that is 332 meters long. at what angle is the sun above the horizon at that time?

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.