7+-3i is the correct answer because you add 4+3 because they are like terms then you add 2i+-5i because they are like terms
In 1 meter is 100 cm also like this <u>1 meter = 100cm</u>
let cat food = x
total plus 5% = 105% = 1.05
1.05 * (11.50 + X) = 16.80
12.075 + 1.05x = 16.80
1.05x = 16.80-12.075
1.05x = 4.725
x = 4.725 / 1.05
x= 4.50
the cat food cost $4.50
11.50 +4.50 = 16.00
16.00 * 0.05 = 0.80
16.00 + 0.80 = 16.80
Answer: r = 2
Step-by-step explanation: