An item that was selling for 80.00 is reduced to 68.00 find the percent decrease in price

Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm

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

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x