Verified answer

Answer:

The following expressions can be formed using y, 2 and 7:

2

y

+

7

,

2

y

−

7

,

7

y

+

2

,

7

y

−

2

,

2

y

7

a

n

d

s

o

o

n

.

Step-by-step explanation:

Please mark the brainly