Mr. Jones wants to put a fence around his back yard. The perimeter of the yard is 60ft. If the length of the yard is x and the width of the yard is 2x. What is the length and width of Mr. Jones' backyard? (Hint use the formula P = 2(1) + 2(w) (10 pts)​

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?

Which is the focus of a parabola with equation y2=4x

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).