Please help 50 points to whoever answers, and brainliest to best answer

Pick the description of a geometric object that best matches the real world object box for a deck of card

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

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish