Sterling got money for his birthday. he spent half of his money on a coat, 74$ on sneakers , 42$ for a pair of shoes, and had 77$ left after shopping. how much money did sterling get for his bday

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer

How do you use the elimination method for this question? explain, because i really want to understand!

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed