A nucleus with four protons has a total positive charge of

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

∠cbe and ∠deb are same-side interior angles.

i took the test

-4, -2, 1, 4

step-by-step explanation:

domain = x values

range = y values