Answer: 9x + 3y = 12
Alternative forms: y = 0.4 OR y = 
First, you would need to create an equation for this problem. Let x represent the unknown tax.

=

Next, you would cross multiply.
100x = 52.5
Now, all you would have to do is isolate the x. To do this, you would divide both sides by 100.
x = $0.525I hope this helps!
Answer:
- C. 13x = 39
- E. x + 7 = 10
- F. x – 1 = 2
Step-by-step explanation:
Putting 3 into each of the equations in place of x, you get ...
A. 3·3 = 1 . . . . false
B. 3·3 = 33 . . . . false
C. 13·3 = 39 . . . . TRUE
D. 3 +4 = 9 . . . . false
E. 3 +7 = 10 . . . . TRUE
F. 3 -1 = 2 . . . . TRUE
Applicable choices are C, E, F.
Answer:
11 m/s; 2 m/sec²
Step-by-step explanation:
v(t) = s'(t) = 2t +3
v(4) = 2·4 +3 = 11 . . . m/s
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a(t) = v'(t) = 2 . . . . m/s²
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Velocity and acceleration are 11 m/s and 2 m/s².