Question 5 (1 point) 1) Listen
How many different four-letter secret codes can be formed if the first letter must be
an S or a T?
O A) 421,824
O B) 35,152
C) 456,976
D) 72
Question 6 (1 point)
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1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5

34

step-by-step explanation:

b. 18

step-by-step explanation:

so the equation for this is:

ab^2=ac⋅ad

ab being the top length of 6 and ac being the length of 2 and ad being the length of x. let's plug into the equation:

6^2 = 2x

now lets just solve for x:

36 = 2x

18 = x

i hope that !

19

step-by-step explanation: