Answer:
1. 0.82x
2. 1.18x
3. (7/10)x
4. (3/10)x
Step-by-step explanation:
When something is discount off 18 percent, it lowers the orginal price by 18 percent. Pretend the original price is x. Taking out 18 percent would be 0.82x
Same thing. 18 percent more, would be 1.18x since instead of subtracting, you add. 1.18x
3/10 in percent form is 30 percent. 100 - 30 = 0.7 so 0.7x
Since it has 3/10 <em>of </em> the orginal, it is multiply. If the orginal is x, x * 3/10 = (3/10)x.
