David would have to save for 7 weeks in order to have enough money for his bike.
Answer:
D. 8ab+12a-2b-3
Step-by-step explanation:
You are basically combining like terms
1/10 of the thread is left because a connected to b is the thread and minus the 1/5 is 1/10 since 1/3 +total thread to begin wit.
Answer:
The equation is given by:

Step-by-step explanation:
During last years's charity walk, she raised $45.50.
During this years walk, she raised n, which is 7/10 of this amount. So, the equation is given by:

Answer:
144
Step-by-step explanation:
Base:16
Height: 18
Triangle area formula: (bxh)/2
16x18=288
288/2=144