1. 10k – 6 = 14 2. 3. 15 – 2b = -9 4. 2d + 10 = 6d – 10 5. –2a – 9 = 6a + 15 7. What would be the 1st step to solving the equation below? 30 + 0.50x = 1.25x A subtract 30 from both sides B subtract 0.50x from both sides C add 0.50x to both sides D add 30 to both sides 8. At what step was the first mistake made? A Step 1 B Step 2 C Step 3 D Step 4 6. X + 24 = 12 + 3x

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?

How many times larger is 6 × 10^12 than 2 × 10^7? a. 30,000 b. 3,000 c. 3,000,000 d. 300,000

Suppose we have a set of small wooden blocks showing the 26 letters of the english alphabet, one letter per block. (think of scrabble tiles.) our set includes 10 copies of each letter. we place them into a bag and draw out one block at a time. (a) if we line up the letters on a rack as we draw them, how different ways coukl we fill a rack of 5 letters? (b) now suppose we just toss our chosen blocks into a pile, and whenever we draw a letter we already have, we put it back in the bag and draw again. how many different piles of 5 blocks could result? possible? piles will contain at least one repeated letter? (c) if we draw out 5 blocks wit hout looking at them, how many different piles are (d) if we draw out 5 blocks without looking at them, how many of the possible 2. (4) consider the following formula. 12 give two different proofs, one using the factorial formulas and the other combina torial.