Answer:
C = 56.6 cm
Step-by-step explanation:
The circumference of a circle is
C = 2 * pi *r
C = 2 * 3.142 * 9
C =56.556
Rounded to 1 decimal place
C = 56.6 cm
Answer:5.9-6.2x
Step-by-step explanation:
a=1.4-2x
b=-0.2x+1.7
3a+b
=3(1.4-2x)+(-0.2x+1.7)
=4.2-6x-0.2x+1.7
=4.2+1.7-6x-0.2x
=5.9-6.2x
Tax
$350x0.07
=$24.50
(0.07 is the 7% tax in decimal form)
Total cost
$350+$24.50
=$374.50
OR
$350x107%
=$374.50
1.07 is the table cost (100%) plus the sales tax (7%)
The table costs $374.50 with tax.