$16(4 shirts)= $64
5%=$64(0.05)=$3.20
Jamal's total is $67.20
Answer:
7pounds=$10.43
10 pounds=? solution 10.43×10÷7=14.9 the equals sign means cross multiply.
The answer would be 125.
The answer is 125 because 10 to the 6th power is 1,000,000 and 10 to the 4th power is 40,000. 5*1,000,000 is 5,000,000. 4*10,000 is 40,000. 5,000,000/40,000 is equal to 125!
Here we have three similar triangles
In similar triangles sides are in proportion
The altitude to the hypotenuse of a right triangle is the mean proportional between the segments into which it divides the hypotenuse.


We cross multiply to solve for y

Taking root of both sides
y=8