What is the value of 1/4 to the third power

How many bananas are in a fruit bowl that has 200 total apples and bananas if there are 31 bananas for every 93 apples

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?