A#b=ab+a+b
Replace a with 2 and b with 5
2#5=2*5+2+5=17
Answer C
B) A number line shows numbers from 0 to 12 in increments of 1. The portion of the line from 1 to 7 is bold with shaded circles at 1 and at 7
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The scale factor of DEF : RST is 3/4.
X = 12
The milliliters of acid in the solution is 74.1 milliliters
<h3>How to determine the milliliters of acid in the solution?</h3>
The given parameters are:
Volume of the solution = 388 milliliters
Proportion of acid in the solution = 19.1%
The milliliters of acid in the solution is then calculated as:
Milliliters = Volume of the solution * Proportion of acid in the solution
Substitute the known values in the above equation
Milliliters = 388 milliliters * 19.1%
Evaluate the product
Milliliters = 74.1 milliliters
Hence, the milliliters of acid in the solution is 74.1 milliliters
Read more about proportions at:
brainly.com/question/1781657
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Circumference = 2xpi x r
=2 x 3 x 5
=6 x 5
=30