Having trouble i don't understand the problem

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)

Write the equation in logarithmic form e^x=403.429