Please Help With The Image Attached will mark brainliest

42.3

Step-by-step explanation:

3.6 × (3) + 4.5 × (7)

= 10.8 + 31.5

= 42.3

351

Step-by-step explanation:

3.6 x 3 = 10.8                                3.6 x (3) + 4.5 x (7)

4.5 x 7 = 31.5                                       10.8 + 31.5

10.8 + 31.5 =  42.3                                  42.3

Hope this helps :)

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

days of the week

step-by-step explanation:

javier earned more money then kyle, so that won't always be a constant term, but the days of the week do not change so that term is always constant.

edit: i meant