I need help with 3 problems. 3(3m-2)=2(3m+3)

7-3r=r-4(2+4)

6.78j-5.2+1.2j=5.53j+2.15

Circle o has a circumference of approximately 44in what is the approximate length of the diameter d

Solve this problem by using a 5d process or writing and solving an equation. no matter which method you use, be sure to define your variable and write an equation to represent the relationship a rectangle has a perimeter of 30 inches. its length is one less than three times its width what are the length and wodyh of the rectangle?

Carla is cutting pieces of string that are exactly 24 3/8 inches long. how many pieces can she cut from a ball of string that’s is 100 feet?