Answer: 6
Step-by-step explanation:
Step 1: Set up equation:
90=40.62+8.23p
^ the 'p' represents pounds.
Step 2: Subtract 40.62 from both sides
49.38 = 8.23p
Step 3: Divide both sides by 8.23 (We do this to get the variable "p" by itself)
6=p
Trust Milky. Milky Smart
The cofunction identities for tangent are:
tan (90° – θ) = cot θ and cot (90° – θ) = tan θ
15. 
Step 1: Distribute the subtraction sign to all the numbers in the second set of parentheses...


Step 2: Combine like terms (
's go with
's)




Step 3: Combine like terms (
's go with
's)




Step 4: Combine like terms (normal numbers go with normal numbers)

1 + 2
3

You were correct!
16. 
I don't really know how to explain this one but I got: (7m-6n)(7m-6n)
Answer:
I don't have an image to show you, but I can explain where to put it
Step-by-step explanation:
A) Draw PQR Upside down, but in the top right corner.
B) Draw PQR in the bottom right corner.
It's a bit confusing, but it's the best I can do, ask questions if you need more explanation please :)