P = $2,500, r = 2.5%, t = 5 years, compounded semi-annually Round to the nearest hundredth.
Pls help

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.