Ruby has a fair spinner with five equal sections, numbered from 1 to 5. She spins the spinner twice and then adds the numbers from the two spins
together.
a) What is the probability that the numbers add to more than 8? Give your
answer as a decimal.
b) What is the probability that the numbers add to more than 15?

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?