1.) If Gigi and Bella combined their weekly pay they would make $55
Gigi's weekly pay is $5 more than Bella's weekly pay. Find the weekly
pay for Gigi and Bella.

Gigi's pay $30, Bella's pay $25

Step-by-step explanation:

You could use guess-and-check, or you could use a system fo linear equations

Gigi's pay is represented by the variable g and Bella's by a

g=b+5

g+b=55

Substitute the first equation into the second to get b+5+b=55, simplify to 2b+5=55. Subtract 5 from both sides, get 2b=50. Divide by 2 and find out Bella's pay is $25. Add 5 to that to get Gigi's pay of $30

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm