Simplify a⁷ ÷ a⁴ × a⁵

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.

Yvaries directly as x. y =90 when x=6. find y when x=13