I recommend that you download photomath, it is an app that takes a photo of the equation and answers it most of the time.
The answer is a.) -27
subtract 11 from 38
27 keeps the negative sign because -38 is larger than 11
To find the area you just multiply 10 by 3.6.
10(3.6) = 36
Area = 36 cm
Hope this helps!
Distance ÷ Speed = Time
81 miles ÷ 60.4 miles per hour= 1.34 hours
1.34 hours ≈ 1 hour 20 min
