Can someone check my answers it would be much appreciated!

Question

1. Evaluate the linear expression 14x−22 for x=3
A. 64
B.−52
C.20*****
D.−5
2. Evaluate the expression mn/m-n for m=−12 and n=6
A.−12
B.12
C.−4*****
D.4
3. How many terms are there in the expression 1+2k−j
A.six
B.three*****
C.two
D.four

Answer 1

#1 ok
#2 nope. negative/negative = positive
#3 ok

Answer 2

check #2 ... the sign

Answer 3

1. C correct
2. The way you typed it the answer is zero
mn/m-n = n - n = 0
If you mean
mn/(m-n) then
-12 *6 / (-12 -6) = - 72 / -18 = 4 like POSITIVE 4
3. yes

Answer 4

Thank you so much I really appreciate it!

Answer 5

hi

Answer 6

Evaluate this expression. 75.5 − 32.55

Answer 7

Evaluate this expression.

75.5 − 32.55