The sales tax on $350 is 22.75 find the sales tax rate

To find the tax rate when given the initial price of an object and the final tax value, you use the equation: $350 * X = $22.75 (where X is the sales tax rate). Then solve:
$22.75/$350 = .065

So the rate is 6.5%

chad should not have included the values (1, 2) and (3, 6) because that would mean he only had half a healing card.