Question

how do you write out "the product of 11 and he expression y times 3"

Answer 1

y*3=11

Answer 2

the product of a and b means a*b (a times b)
the product of 11 and the expression y times 3 means
y * (expression y times 3)

expression y times 3 is just 3*y , usually written 3y (which means 3*y or y*3)

so
y*3y

we usually write the numbers first. because it's multiplying we can change the order
3*y*y
but we usually leave out the multiply sign, and we usually write y*y as y^2
so we get
\[ 3y^2\]