please solve these questions step by step explanation
1.There are 12 girls sitting in a row if x rows are made and still 7 girls are left find the total number of girls in terms of x ?
2. Richa is 4 year older than her brother if the age of her brother is years what is the age of Richa ?
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Answer:
the girls in one row is =12
girls in the x row is = 12 × x
=12x
girls are still left =7 total girls =12x +7
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