Answer:
Infinitely many solutions
Step-by-step explanation:
x+y=3
2x+2y=6
x=3-y
2(3-y)+2y=6
6-2y+2y=6
6+0=6
6=6
infinitely many solutions
10.625
1) 13 calls a day
2) 41 feet per second
7 ^2 ⋅ 7 ^4 = 49^6