What is the angle measure of 2x+1

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points

What is the solution to the equation below? 3/x-2+6=square root x-2 +8