I wrote answers in picture and I use Desmos app to solve this equations
Rudy answered 2 more questions correctly
...........
46x2=92
44x2=88
...........
92-88=4
Answer:
90 cents
Step-by-step explanation
divide .99 by 10 and that gets you 9 cents minus that off and its 90 Cents
Answer:
The answer to your question is below
Step-by-step explanation:
csc α - cot α = 
Work with the left part

Simplify

Multiply by the reciprocal
Simplify

Remember that
sin²α = 1 -cos²α
Substitute the previous equation

Simplify
The identity i proved.
it should be 3+(-7) because look at the number closest to the number line, which is positive 3 then the number next to it is negative 7 because it is heading downward towards the opposing side.