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?​

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?