Please help me ASAP I need it done by 2:30 please help I beg you

Answer:
148.619957seconds
Step-by-step explanation:
C=2 times pi times r
1400=2 times 3.14 times r
700=3.14 times r
r=222.929936
divide radius by the rate
222.929936 divided by 1.5ft/second
148.619957seconds