Are these ratios equivalent?$18 for 25 milligrams$36 for 50 milligrams

Yes, these ratios are equivalent. Here's the step-by-step explanation:

Step 1: Identify the two ratios. The first ratio is $18 for 25 milligrams and the second ratio is$36 for 50 milligrams.

Step 2: To check if the ratios are equivalent, we can simplify them to their simplest form.

Step 3: For the first ratio, divide both the dollar amount and the milligrams by the smallest number, which is 25. $18 ÷ 25 =$0.72 per milligram.

Step 4: For the second ratio, divide both the dollar amount and the milligrams by the smallest number, which is 50. $36 ÷ 50 =$0.72 per milligram.

Step 5: Compare the simplified ratios. Both are $0.72 per milligram, so the ratios are equivalent.