Please help me before tomorrow and explain with words please I don't understand :( factor the trinomial
-2h^2+5h+3​

17 in long 1.3 ft wide and 8in high what is the volume

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Acommunity group is building a garden on a rectangular lot of land. the lot measures 5x by 10x and the garden will be circular with a radius of 3x. how much of the land will be left over after the garden is built? a. 41 pi x^2 b. x^2 (50 - 9 pi) c. x^2 (50 - 3 pi) d. 41x^2