Using only the values given in the table for the function f(x)=x^3+4x+3 what is the largest interval of x values where the function is increasing

The table above shows approximate conversions from gallons to liters. what is the value of x?

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ac=26 and ch=8, find bh.