9.24 / (5.5 * 6) = 9.24 / 33 = 0.28 per oz
4.68 / (6.5 * 3) = 4.68 / 19.5 = 0.24 per oz
4.48 / (3.5 * 4) = 4.48 / 14 = 0.32 per oz
so the lowest cost is the 6.5 oz tuna in packs of 3 cans for 4.68
Answer:

Step-by-step explanation:

Add ten from both sides and then divide 40 of 5x its 8
B subtract 8 from both sides 13 divide by 3 answer is 13/3
A) n-20
b.)30=1/2n+1/2
c.)2/3n=30
d.)5n=90
e.)M•3+4=49
Answer:
15.
x = 40/9 = 4 4/9
z = 24/5 = 4 4/5
17.
x = 50
y ≈ 11.5
Step-by-step explanation:
15. Corresponding segments are proportional:
top right side / whole right side = x / 8
5/(5+4) = x/8
x = 8(5/9) = 40/9
x = 4 4/9
__
right side bottom / right side top = z / 6
z = 6(4/5) = 24/5
z = 4 4/5
____
17. The acute angles are complementary:
x = 90 -40 = 50
__
From the Pythagorean theorem:
y = √(15² -9.6²) = √132.84
y ≈ 11.5