Are you trying to graph it because it is in y=mx+b form.
In general, a rhombus' diagonals have different lengths. This limits the rotational symmetry order to be 2, namely, it gets back to the same shape by rotating 180 degrees. There is a special kind of rhombus where the diagonals have equal lengths, in which case the rhombus has order of rotational symmetry of four. We also call this special kind of rhombus a square.
If Jose bought 750 bags of peanut for $375,
then each bag of peanut = $375 ÷ 750
= $0.50
Since each bag is to be resold for $0.15 more than the original cost, then Jose should sell each bag for $0.65
Since these appear to be algebra tiles, an expression for this would be 2x+6.
The rectangular blocks are x and the squares are 1 unit. There are 2 x's, or 2x, and 6 units; 2x+6.
I will leave out the base, b since it's the same for all these logarithms.