What is the sum of the first seven terms of the geometric series where a1 = 10 and r = −2?

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Afamily of five rents a kayak and splits the total time, k, equally. each family member spent less than 25 minutes kayaking. which values can be used to complete the math sentence below so that it accurately represents the situation? intro done

Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?