Answer:
b=4
Step-by-step explanation:
P.T.c^2=a^2 +b^2
5^2=3^2 +b^2
25=9+b^2
b^2 =25-9
b^2 =16
b=sqrt(16)
Answer:Yes
5×3=15. 9×3=27
x = -20
Let me know if you need the work.
D.) 50 mi/h and 60 mi/h