How do I figure out x+30=4x-6

A family swimming pool membership costs $55 per month plus a one-time registration fee of $25. If a family has paid a total of $465, how many months have they been members?

What two factors of - 15 have a sum of - 2?

In which city is the water tempurature higher? 2C or 38F

X+Y=100 4.5X+20Y=822 Elimination, graphing, and substitution methods.

How can we find the measure of an exterior angle if we know the measurement of an interior angle

Enter the value of n so that the expression (-y + 5) + (7y - 9) is equivalent to (ny - 4)

The heavyweight weight class in high school wrestling is from no less than 195lb and a maximum 285 LB write two inequalities to represent this range

A shose box measures 15in. by 7in. by 4 an half

Write the equation or inequality : in order to take honors level math, Lisa must have an average of 85 on her math tests. Her scores so far are 85, 70, and 98. What is the minimum score Lisa needs on the fourth test to get into honors math class?

Convert 3/5 to its decimal form and round to the nearest tenth