Write an expression that can be used to check the quotient of 646÷3

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

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)

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if