Answer:
the answer is 7
Step-by-step explanation:
Arc PQR has the central angle (360 - [150+73]), or 223. The circumference of this circle is C = pi*2*r, or C = pi*2(6.48 in) = 40.72 in. The arc length in question is a fraction of that, namely:
223
----- * 40.72 in = 25.22 in (answer)
360
Answer is $30.75
19.68÷16=1.23
1.23×25=30.75