The sum of twice a number x and 13 is two less than three times x

Find the quotient. 50a2 – 98b2 -5a +7b

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

What is the sum of the first 8 terms of the geometric series