Evaluate the expression using x=3: 3x + 15

Evaluate the following expression using m=40: (100-m)/6=

Lila has $10. She buys 8 postcards at $m each How much does Lila have left in terms of m?

Simplify: 2 + 6d -1 - d

Simplify: 3k + 3l + 3k - 3l - 3k + 3 - 3k

Simplify: 10n - 6n + 13 + 2n

Simplify: 3x + 8 + 4x

Simplify: 6p + 12q -3q + 3p

Alice has some marbles. He puts x marbles in a bag. There are 6 bags and 2 extra marbles in total Express the total number of marbles in terms of x

Simplify: 7s + 15t - 7t + 4s - 8t

Lila buys 5 kg of apples at $n each kg and 6 kg of pears at $4 each kg a) How much does Lila have to pay in total in terms of n?

Vivian bought 4 candles. She gave the cashier $15 and received $m change Express the cost of 1 lollipop in terms of m.