Okay first off. You want to combine like terms.
2.75-1.5=1.25j
2.25+3=5.25
Now you just fit those two answers into the final answer and you have:
1.25j+5.25.
Crosssection= 1.7mx2=3.4
2x3=6x3=18
3.4+18=21.4
If it’s addition, 6+9=15 in multiplication, 6x9=54.
Step-by-step explanation:
multiply the outer term to the inner term
so, 6x-10.