Simplify the expression below (2x^2-5x+6) + (5x^2-3x+ 4)

A. 7x^2-8x+10
B. 7x^2-2x+10
C. 7x^2-8x+2
D. 7x^2-2x+2

Is it greater than or less than7*3_9*2

Julia bought 7 hats a week later half of all her hats were destroyed in a fire. there are now only 12 hats left with how many did she start

Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet