Challenge Your Exam Readiness With Our Free Praxis Core Practice Questions

Praxis Core Math emphasizes translating verbal situations into algebraic expressions and inequalities. A common fee structure includes a fixed initial cost plus a variable hourly rate. Here, the fixed cost is $40 (registration) and the variable cost is $18 times the number of hours hh. The total cost is therefore 40+18h40 + 18h. Because the student’s budget is “at most $250,” we model this as an inequality where total cost is less than or equal to the budget: 40+18h≤25040 + 18h \le 250. Option B matches this structure but with terms reversed as 18h+40≤25018h + 40 \le 250, which is algebraically equivalent to 40+18h≤25040 + 18h \le 250. Option A incorrectly multiplies the fixed fee by hours, which would treat the registration fee as recurring. Option C subtracts the fixed fee rather than adding it, which misrepresents the total. Option D places the hourly multiple on the budget term and reverses roles of constants and variables in a way that doesn’t reflect the scenario. On test items like this, identify fixed vs. variable components, set up the inequality with correct comparison language (“at most” → ≤\le), and then, if asked, solve by isolating hh.