A hardware store has a display of 75 screwdrivers. For every 7 flat-head screwdrivers, there are 8 Phillips-head screwdrivers. How many screwdrivers are there of each type? ​

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

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:

Find the value of x. give reasons to justify your solutions! l, m ∈ kn