I thinkkkkk that you have to see what 2 #'s equal 7??
3 and 4! Because 3x4=12 and 4x3= 12! Mark me brainliest so I can help more people !
Hi there!

Find the perimeter using the formula:
P = 2l + 2w
It is given that the dimensions are 2.8 × 1.9 so plug these number into the equation:
P = 2(2.8) + 2(1.9)
P = 5.6 + 3.8
P = 9.4m
i think that's the answer
6 batteries cost $7.50 because u divide 10 by 8 and then multiply by 6