A single card is drawn at random from a standard 52 card deck. Work out the following probabilities in their simplest form:
P(9)=

1/13

Step-by-step explanation:

There are four 9s in a standard deck of 52.  So the probability is 4/52 = 1/13.

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign