Last year, Maria had 3 dogs and Tessa had 5 Dogs. This year, Maria has 6 dogs and Tessa has 2 dogs. What is the difference between the percent increase in dogs for Maria, and the percent decrease in dogs for Tessa?

(a) solve h+2/6 = h-3/4(b) solve the following simultaneous equations. 2x = y + 66x - 2y = 13x = ? y = ?

6x - 8 = 16 solve the following equation. then place the correct number in the box provided.

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?