Which equation has exactly one solution? 7
x
=
7
7 x is equal to 7

7
x
=
7
x
7 x is equal to 7 x

x
+
1
=
x
+
1
x plus 1 is equal to x plus 1

x
+
1
=
x
+
2

Adeli owner keeps track of the to-go orders each day. the results from last saturday are shown in the given two-way frequency table. saturday's to-go deli orders in person by phone online total pick up 38 25 31 94 delivery 35 28 34 97 total 73 53 65 191 what percent of the to-go orders were delivery orders placed by phone? a. 14.66% b. 38.41% c. 28.87% d. 52.83%