PLS HELP!! I WILL MAKE BRAINLIEST

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Lucy spent $165 in december using a new credit card. in january, she began paying between $15 and $25 each month towards her account balance.