Answer:
Frank has X+45 baseball cards
Step-by-step explanation:
You just add 45 new baseball cards to the ones he had before which is X
Start your line at y=15 and for every number on x go up one square
Answer:
The surface area of the composite figure is 
Step-by-step explanation:
we know that
The surface area of the composite figure is equal to the surface area of the rectangular prism of the bottom plus the lateral area o the rectangular prism of the top
so
Step 1
Find the surface area of the rectangular prism of the bottom
The surface area is equal to

Find the area of the base B



substitute

Step 2
Find the lateral area of the rectangular prism of the top
The lateral area is equal to



substitute

Step 3
Find the surface area of the composite figure

Answer:
x=-3
Step-by-step explanation:
It’s B
6x3=18
sqrt18 simplifies to sqrt9 x sqrt2
sqrt9 is 3 for 3sqrt2