jason has 12 coins in his pocket ,he has twice as many nickles as he has quarters how many nickles does jason have

2 answers

x + 2x = 12

3x = 12

x = ?
How can I represent (a+b+c)^2=a^2+b^2+c+2ab+2bc+2ac
using card board pieces

please help i have to submit it tommorow so please help me fast