last year, mr erge's total income was $52,000 while his total expenses were $53,800. determine the average difference between his income
and expenses each month

a. $1,800
b. $250
c. -$1,800
d. -$150

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

Find the multiplicative inverse of 8-12i

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x