651 = 129 + 58x;

-129 -129

522= 58x; divide both sides by 58 to isolate x, and you get x=9, so they have had the membership nine months

**Answer:**

Three groups of 3/4 fit in 11/4

**Step-by-step explanation:**

Three groups of 3/4 would be 9/4, any more groups of 3/4 will exceed 11/4

**Answer:**

60 degrees

**Step-by-step explanation:**

**Answer:**

y = 0 and x = 6

y = 2 and x = 3

y = 4 and x = 0

y = 6 and x = -3

**Step-by-step explanation:**

2x+3y=12 is the equation of a straight line.

There are infinite number of solutions, but here you're probably looking for solutions where x and y are whole numbers. Trial and error will find you some, although if you examine the equation closely you see that if x is a multiple of 3 and y is a multiple of 2, then they produce terms that are the LCM (least common multiple) of 2 and 3, namely 6. That's the logic in the whole number solutions.