Yes all trapezoids are quadrilaterals
+ 2 × 5
To evaluate apply the rules of PEMDAS (Parentheses, Exponent, Multiplication, Division, Addition, Subtraction)
Parentheses
There are none for this steps so go on to the next step
Exponent:

81
so...
81 + 2 × 5
Multiplication:
81 + 2 × 5
2 × 5
10
so...
81 + 10
No division in this equation so skip this step and go to the next one
Addition:
81 + 10
91
Hope this helped!
~Just a girl in love with Shawn Mendes
Ugh can I see the fulll question
-1/9+-5/9=
When you are adding a negative number, the operation turns into subtraction:
-1/9-5/9=

Really, it's just subtraction. The simplest form is -2/3, which is equal to -0.66667.
I hope this helps :)
Answer:
0.185 Step-by-step explanation:
(2.4 x 10^-1) - (5.5 x 10^-2)
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0.24-0.055= 0.185