Answer:
Graph attached.
Step-by-step explanation:
In the question the given parameters are as followed.

1). Amplitude a = 7
2). Period = 
3). Vertical shift = 1 means mid line of the graph will be y =1 and maximum of the graph is 8 and minimum is -6.
Answer:
x = 9.3
Step-by-step explanation:
tan 25° = x/20
0.4663 = x/20
x = 9.3
Answer:
It's 4.6 but rounded to 5
Step-by-step explanation:
1 batch=2 1/2 cups of flour
3 1/2 batches= x cups of flour
1batch 3 1/2 batches
___________ = _____________
2 1/2 cups x cups
Cross multiply
1x=8 3/4
divide both sides by 1
x=8 3/4 cups
Answer= 8 3/4 cups of flour