Calculte the cos Ф to two decimal points

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12