Answer:
7.5
Step-by-step explanation:
cant u just g oogle it?
The answer is $10
if you add up the total price for each of the items it totals to $40, she has $50 so $50-$40=$10
Answer:
Step-by-step explanation:
15*20=x
Answer:
b+194=pies
Step-by-step explanation:
take the number of pies baked this year then add the b and then you get p(pies)
Answer:
(d).
Step-by-step explanation:
sin² β + cos² β = 1
cos (α + β) = cos α cos β - sin α sin β
cos α = √(1 -
) = 21 / 29
cos β = 12 / 13
sin β = √(1 -
) = 5 / 13
sin α = 20 / 29
cos (α + β) =
×
-
×
=