Tyler is simplifying the expression 6 - 2x + 5 + 4x. Here is his work.

A 6 - 2x + 5 + 4x

B (6-2) x + (5+4) x

C 4x + 9x

D 13x

Tyler's work is incorrect. On which line did he make his mistake?

Two different radioactive isotopes decay to 10% of their respective original amounts. Isotope A does this in 33 days, while isotope B does this in 43 days. What is the approximate difference in the half-lives of the isotopes? A. 3 B. 10 C. 13 D. 33

Which of the following is the inverse of the statement "if I like carrots, then I like vegetables

Which mass is the most reasonable for a kitten? A. 100 mg B. 1 gram C. 10 grams D. 1 kg

32 - 5x is greater than or equal to 7 - 5 (x - 5)

Which one of the following sentences has an error in capitalization? A. My Father has decided to retire in the fall of next year. B. We crossed the Snake River and miles of nothing much on our way to Abilene. C.

Which numbers are solutions of 2n-15<-3

Luke rides his bike 20 miles in 4 hours. If he rides at a constant speed, select the answers here that are equivalent ratios to the speed he rides. A: 30 miles in 7hrs B: 25 miles in 6 hours C: 10 miles in 1 hr D. 15 miles in 3 hrs

The chess club is selling drinks during the tract and field event. The club purchases water, juice boxes, and pouches of lemonade for the event. They spent $138.52 on juices boxes and $75.00 on lemonade. The club purchased three cases of water.

How much is 18 tens + 13 tens

The sugar company will choose from two companies to transport its sugar to market. The first company charges 5197 to rent trucks plus an additional fee of 175.75 for each ton of sugar.