You can double check this with a calculator if you'd like to.
1. 13+6=19 13-6=7
When you owe money it is a negative because when you earn money you have to pay it back
I think the answer is C. (a.k.a the third one)
I hoped this helped !!
7√7
using the ' rule of radicals '
• √a × √b ⇔ √ab
simplifying the radicals
√28 = √(4 × 7 ) = √4 × √7 = 2√7
√63 = √(9 × 7) =√9 × √7 = 3√7
√112 = √(16 × 7 ) = √16 × √7 = 4√7
substituting into the expression
3(2√7) - 5(3√7) + 4(4√7) = 6√7 - 15√7 + 16√7 = 7√7
I’m pretty sure the answer is m= -6/5 I’m not sure tho
