John must have at least 289 test points to pass his math class. he already has test scores of 72, 78, and 70. which inequality will tell him  at least  how many more points he needs to pass the class?                 a.  72 + 78 + 70 +  x  ≤ 289      b.  72 + 78 + 70 +  x  > 289      c.  72 + 78 + 70 +  x  < 289      d.  72 + 78 + 70 +  x  ≥ 289

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.