+1982 Joel's family has four more pets than Brian's family. Together the two families have at least 7 pets. Let x represent the number of pets Brian's family has. Which inequality can be used to find the possible numbers of pets Brian's family has?
A) x + 4 ≥ 7
B) 2x + 4 ≥ 7
C) 2x + 4 ≤ 7
D) 2x - 4 ≥ 7
E) 2x - 4 ≤ 7
The cost in dollars, C, of renting a carpet cleaner is given by the linear equation
C = 20 + 25x, where x is the number of days.
Use this model to find the cost of renting the unit for 11 days.
A) $245
B) $295
C) $345
D) $425
E) $495
Kevin won six times as many games as Joanne did. Which equation expresses this mathematically?
A) j = 6k
B) k = 6j
C) j + k = 7
D) k - j = 5
E) j = k - 6
