Which statement below shows two equivalent expressions? A. x + x + x and x to the 3

B. 14x + 10 - 2x and 16x + 10

C. 12x + 16x and 4(3x + 4x)

D. 12x to the 2 + 5x + 10 and 17x to the 2 + 10

sorry if this doesn’t make any sense.

Which graph corresponds to the function f(x) = x2 + 4x – 1?

What is the interquartile range of this day at set?

Two trains leave a station on different tracks. the tracks make an angle of 130°, with the station as a vertex. the first train travels 100 km and makes its first stop at point a, while the second train travels 200 km and makes it first stop at point b. how far apart are the trains when both are at their first stop? round the answer to the nearest integer. a) 65 km b) 139 km c) 224 km d) 275 km