The probability that the card is a football card is 20 out of 50 or 40%
the probability that the card is a basketball card is 10 out of 50 or 20%
The sum of two numbers and their difference is 30.
Answer: 10x + 7
Step-by-step explanation:
multiply everything
2x + 7x + x + 7
combine like terms
10x + 7
Answer: 34+89=7464668+684967676734(64774)+634876=<563576763>6783876783<+>74979894=738938477482738978e9827897279
Step-by-step explanation: