What type of function is f(x)=2(1/7)* ?

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4