exam Maths Puzzle Numerical Ability

The odds of John winning a marathon are 3:7. What is the probability that John will win his next race?

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exam Other Question

You pay $38.50 for a sweater that is marked 30% off the reguar price. What is the regular price of the sweater? How much did you save by buying it on sale? please assisyt me in the following:
Graph the following inequalities:
2x-2>5

7x-3>_16

Trying to help my daughter with her homework.
Randy