10 boys cleared a piece of land for 21 days how many days will it take 7 boys to clear the same land if they work at the same rate ​

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

Nine more than four times a number is the same as one less than twice the number. find the number?

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000