Answer:
Is seven times the difference of a number and 4 no more than 10?
If they don't stop 1 hour and a half.
90 miles away from Becky and 120 away from Don
Soh Cah Toa
Sin= opposite/ hypotenuse
Cos= adjacent/ hypotenuse
Toa= opposite/ adjacent
Tan(C)= 20/21
Answer and working out attached below. Hope this helps.