Sam chose a number. He then multiplied his number by 2 and added 7. His result was 23. What was his original number?

Round 5,382,619 to the nearest 100

14x2 - 8x + 3 - 6x2 + 7x-11

If Donna traveled 2,100 miles in 7 hours on her train ride through Europe, how fast was the train traveling?

What is the difference between length and capacity?

A local bank has a debit card that gives a $3 reward each month

Chloe has 20 unit cubes. how many different rectangular prisms can she build with the cubes?

The ratio of pens to pencils in carlos case is 4:5 he has 16 pens how many pencils does carlos have

An obtuse angle has a measure of A) less than 90°, it larger than 45° B) More than 90° but less than 180° C) equa) to 90° but less than 360° D) 180° so whats the right answer to that? guys

Taylor took a test in both biology and math last week. the biology test had a mean of 70 and a standard deviation of 7 whereas the math test had a mean of 75 and a standard deviation of 10.

Explain why 1/2of2 equals one whole