The freezing point for antifreeze is -67 F or -55 C
2. x =(6+√20)/-8=3/-4-1/4√ 5 = -1.309
Complementary angles sum upto 90°
so the complement of 9° = 81°
Answer:
Price of Caleb's groceries before tax = $64
Step-by-step explanation:
Let the price of groceries before tax be =$ 
Sales tax charged = $1.60
Sales tax rate =2.5%
Sales tax charged in terms of
will be = 2.5% of the Original price of grocery =
So, we have,

Dividing both sides by 

∴ 
∴ Price of Caleb's groceries before tax = $64