Answer:
78.46
Step-by-step explanation:
Cos y = adj./hyp.
Cos y = 4/20
Cos y = .2
Cos^-1(0.2) = y
78.46304097... = y
78.46 = y
x=1/6
since the base is the same, condense the equation
from log m base a=log n base n, m=n
x + 3 < 12
Hope this helps :)
Let
S= #small candles
L= #Large candles
S+ L =>20
3.50S + 5.00L < 80