How many permutations exist of the letters pqrs and t taking four at a time

 120

Step-by-step explanation:

The given letters : P Q  R S T

Number of letters : 5

The formula of number of permutations of n things taken r at a time is given by :-

Similarly, the number of permutations of 5 letters taken four at a time is given by :-

Hence, there are 120 permutations exists of the letters PQRS and T taking four at a time.

f(x)=2/3x+4/3 is the answer because is whose power in the senate is equal to the power of the speaker of the house?

step-by-step explanation:

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!