Craft club members pay $39 a year plus $9 for each craft kit. Non-members can buy craft kits for $12 each. How many kits will have to be bought for the price of membership and non-membership to be equal ? Explain

What properties allow transformation to be used as a problem solving tool

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Use the distance formula to find the distance between (-3,5) and (3,1)