Simplify the expressions by combining like terms. 30) 4x + 3-x =

31) 5jt+x + 2x =

32) 20.x-12+ 15* + 20A;-3+ 6-9-30* =

33) Mrs. Simmons bought 3 pounds of apples. The price is $2.49 per pound. How much did Mrs. Simmons pay for the 3 pounds of apples?​

Organisms that live in the alpine and taiga biomes have developed unique adaptations that aid in their survival. the douglas-fir is a conifer tree that grows in the taiga biome. it has an average height of about 70 feet, and its wood is an important source of lumber.

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.