Substract 582295 from 715901:
715901-582295=133606
Answer:the answer is 9.3
Step-by-step explanation:
The probability that the first one is red is: 4/9
The probability of the second one is blue is: 2/9
.8 (88%)+.2x=90%
70.4%+.2x=90%
subtract 70.4% from 90% to get 19.6%
make the .2x into 2 and the 19.6 into 196
divide 196 by 2 to come up with the answer of 98%.
you will need a 98% to have a 90% for the final grade
