Can you re-phrase the question
Answer:
$350
Step-by-step explanation:
3 lawns --------------> $105
find unit rate:
1 lawn -------------> $105 ÷ 3 = $35 per lawn
10 lawns --------> $35 per lawn x 10 lawns = $350
Answer:
See below.
Step-by-step explanation:

Distribute:

If the ratio is 3:5, then for every 3 boys there are 5 girls, so you multiply 3 and 5 by 24 and you get your answer.