Solve the equation
Solve the equation for t:
2t - 5
------- = 7
Solve the inequality
How do you solve the inequality 3x ≤ 91 - 4x ?
Find the current age
In 15 years, a child's age will be 9 years less than four times her current age. Find her current age.
Edgar and Erwin go racing
On a certain trip, Edgar drives 231 km in exactly the same time as Erwin drives 308 km. If Erwin's rate exceeded that of Edgar by 13 kph. Determine the rate of Erwin.
If (4, b) is a point on the graph of y = 3x² + 4x, what is b?
Find the number word problem
If 4 times a number is increased by 16, the result is 8 less than 8 times the number. What is the number?
Split the money
Separate $90 into two parts so that the second part is $30 less than twice the first part.
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