exam Maths Puzzle Numerical Ability

4. thank you all so much for your invaluable help. I would like to SEE how I can FACTOR this problem, please help. Thank you!

5u^3 - 80uy^2

Read Solution (Total 0)

exam Other Question

Solve the system by the elimination method.
5x + 2y = -7
7x - 3y = 19
What is the solution to the system???
I really do not understand these how to do these? Can someone please help?? The cost of using a calling card is $.95 for the first minute and $.35 for each additional minute. The function is C (t)=.95+.35(t1) where t=time in minutes. What is the charge for 12 minutes?

Thank you.