pls help me I will mark u as brainiest and GIVE U 100 POINTS there is a picture of answers pls help me

1) 0.16. 4/25=16/100=0.16

2) 4.24. 4 6/25 = 4 24/100 = 4.24

3) 3 2/5, 3.4=3 4/10 = 3 2/5

4) 7 59/100, 7.59 = 7 59/100

5) 0.5, it's the only repeating decimal which is less than 1

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a