Call the age a.
4a-3=3a+7
Add 3 to both sides and subtract 3a from both sides to get:
a=10
Therefore, 10 is the age.
Sale=original-45
129=original-45
add 45 to both sides
174=original
the camera originally cost $174
Answer:
-31
Step-by-step explanation:

P=$17.79-$6.95
P=$10.84
P=$10.84 divide by 0.04
P= 271
Jim ordered 271 prints last month
Answer:
d) 28.472
Step-by-step explanation:
you need to find the length of all the outside edges. for the triangles you will need to use the pythagorean theorem