Shea and Chris drive to work. Shea drives 30 miles in 1.25 hours.
Chris drives 62 km in 1 hour 15 min.
Work out the difference between their average speeds in km/h.
1 mile = 1.6 km

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

The distributive property allows you to say that 3(x − 1) = 3x −