Value of x is used to consider unknown value. The letter “x” is commonly used in algebra to indicate an unknown value. It is referred to as a “variable” or, in some cases, a “unknown.” In x + 2 = 7, x is a variable
$79.75*0.2= 15.95
$79.75-15.95= $63.80
63.80+15.95= $79.75
Answer= $15.95
i wish that i could help you but I just dont understand it... I am sorry
Are you looking for where they cross ? if so its (-1,2)
Answer:
all I know is sin square A +cos square A =1