John is twice as old as bill. greg is 7 years older then bill. four years ago, tge sum of their ages was 55. how old is greg?

The equation 2x2 + 8y2 = 32 represents which conic section?

Which number is a perfect cube? 88 121 243 343

Answer key for batches of cookies equivalent ratios

for walking 13 hours you earn 58.50 and 121.50 for 27 hours. what is your rate of pay in dollars per hour

Translate into an equation or inequality. Do not solve. "One-third of a number is at most 12"

Do the phases of the moon follow a pattern

How many solutions are there? =n-7

Values of an expression

A colony of 40 bacteria doubles in size every 309 minutes. What will the population be 618 minutes from now?

The formula f = 1.8c + 32 allows you to find the Fahrenheit (f) temperature for a given Celsius (c) temperature solve the equation for c to produce a formula for finding the Celsius temperature for a given Fahrenheit temperature