At the city museum, child admission is $6.10 and adult admission is $9.40. On Thursday, 136 tickets were sold for a total sales of $1113.40. How many child tickets were sold that day?

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm