Answer:
-21
Step-by-step explanation:
(7)*(-3)=
7*-3=
- * + = -
- * - = +
+ * + = +
Here + * - = -
7* 3 = 21 and sign is -ve
as annas age =x
arbys age=y
y=7x-6
A. Carmen is driving at a faster rate than Brandon.
B. The difference in the y-intercepts represents the difference between the distances of Brandon's and Carmen's homes to Arches National Park.