Translate the word phrase into a variable expression:

the number b is decreased by the number a.

a.) a – b
b.) b – a
c.) a + b
d.) –b – a

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Solve for x in the equation x2 - 12x + 36 = 90. x= 6+3x/10 x=6+2/7 x= 12+3/22 x = 12+3/10

How does the graph of y = 3x compare to the graph of y = 3-x?