Answer:
1 13/28
Step-by-step explanation:
3×4/28 + 5×4/28. it 28 because the lcm of 4 and 7 is 28
21/28+20/28=41/28=1 13/28
Answer: -3
All work is shown in the attached sheet! :)
3x² - 7
3 times (number squared) and sum with (-7)
3 times x² and add (-7)
3x² + (-7)
Sally would have 8 diamonds left
she would save $47 if she waited.
