PLZ HELP ME WITH THIS IT DUE TODAY and explain 1 is the first image question

2 is second image question

3.-(-½ )-3(-2)

(if you could mark me brainliest that'd be great!)

1. -45

2. -7

3. 13/2

Step-by-step explanation:

1.  

evaluate the power to get  

then multiply the numbers to get -25 - 20

calculate the difference

answer is -45

2.

evaluate the power to get  

calculate the difference of 9-16 (which is the simplified version of )

answer is -7

3.

remove the parenthesis

multiply to get 1/2+6

calculate the sum

answer is 13/2

too hard the other guy did it

step-by-step explanation:

answer: h=5.6 i don't really know how to put into words, so i though i would let you do that. i hope i was able to some

step-by-step explanation:

18 = 6(h)+1/2

18 = 6h+1/2

18-1 = 6h/2

17 = 3h

17/3 = h

h = 5.6