Help me please i will give u points

43 is ur answer

Step-by-step explanation:

sum of angles in a traingle is 180

so (x +2) + 44 + 91 = 180

137 + x = 180

x = 43

x=45

Step-by-step explanation:

91+44+x=180 subtract 135 from 180 and you get 45

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points