Add 4x4 + 7x3 + 15x2 + 4 and 4x3 + 2x2 + 17x. a) 4x4 + 4x3 + 2x2 + 17x + 4 b) 4x4 + 7x3 + 17x2 + 17x c) x4 + x3 + 17x2 + 17x + 4 d) 4x4 + 11x3 + 17x2 + 17x + 4

Antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

With finding limits of multi variable !