Answer:
7
Step-by-step explanation:
Divide 7/8 by 1/4. (You divide the "supply" of raisins into 1/4 cup "parts".)

Multiply 7/8 by the reciprocal of 1/4 ("flip" the 1/4).
The result is 28/8, which can be simplified ("reduced") to 7.
If the math adds up the submarine will travel .6 km in .25 hours.
Answer:
500
Step-by-step explanation:
multiply all of them
Rational is a number that can be expressed as a ratio of two in tegers where denominator is not equal to 0 is called a rational number.