Answer:

Step-by-step explanation:
we are given two temperature
4 degrees and -10 degrees
since it says to figure out the changed
substract

remove parentheses and change its sign

simplify addition:

and we are done!
it would be 16 times larger
162/60 = 2.7 heartbeats per second
Point D (-2,-6)>>(x,-y)>> Point D’(-2,6)
Point D’ (-2,6)>> (-x,y)>> Point D’’(2,6)
123 - Use PEMDAS but since you have both division and multiplication you can just go from left to right