Simplify the following expressi a) 3x + 2 - 7y + x + 2y –
b) 2a + b + a + 3b
c) 4m + 7n + 5m - 5n
d) 2x2y + 5xy2 + 3x2y – 2
e) x2 + x + 2x2
Solution

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction

Josie buys a pair of boots that retail for $52.00 dollars, however they are currently on sale for 25% off how much does josie pay for the boots if there is also a 6% sales tax on them