Hello there.
Answer: ⇒⇒⇒⇒-29
Step-by-step explanation:
Remove parenthesis.

Subtract the numbers.

Hope this helps!
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-Charlie
Answer:
$0.25/g
Step-by-step explanation:
20g --- $5.00
1g ---
× $5.00 = $0.25
Answer:
D = 9sin(2π(t + a)/24) + 45
Step-by-step explanation:
Let's find the average temperature;
(54 + 36)/2 = 45°
Amplitude = 54 - 45 = 9
From the wave equation, we can write the temperature as;
D = 9sin(2π(t + a)/24) + 45
Where;
D is the temperature
t is the time in hours after midnight
a is a "phase" that is used to set the time at which temperature(D) occurs