Perform the indicated row operation: -1
7
2 -1 -4
-1 2 1
0 10 8
7
-1
2.
2 R2+R1 R2
0
10
8
2
DONE

The cash price of a television is $580.the hire-purchase price of the television is $865.the hire-purchase price is an initial deposit of n% of the cash price and 6 equal monthly payments of $120.find the value of n.

Use the x-intercept method to find all real solutions of the equation.x^3-10x^2+27x-18=0

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%.