Question 18 (1 point) ms. boehmer's dog stella weighs about 20.5 kilograms. how many grams does it weigh? question 18 options:

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

3x + 4y = 5 x- 3y = -7 solve by substitution