Answer:
78.54 rounded to the tenths it is 78.5
Step-by-step explanation:
I did the math. And I did my work like this
5*5=25
25*pi=78.5398163
Rounded to hundredths 78.54
Rounded to tenths 78.5 Hope this helps, let me know if correct, and have a great day!!
Answer:
(a) 9
Step-by-step explanation:

substitute r = 4, t = 2

simplify

cubic of 2 is 8

simplify

Y=3x+19
You add 3x to each side. Because your trying to get y by its self like y=mx+b.
Answer: See attached graph