Answer:
<h2>Total yards of ribbon bought is 6.993yards of ribbon</h2>
Step-by-step explanation:
Total pieces of ribbon James bought for his craft project = 10pieces. If each pieces of ribbon were 2.1feet long, the total number of feet for 10ribbons is expressed as;

Converting 21 feets to yards;
1 feet = 0.333yard
21feets = x
x = 
Total yards of ribbon bought is 6.993yards of ribbon
Answer:
m=-3
Step-by-step explanation:
He can make 12 or 9 because 9x4=36 and 12x3=36
4x² - 12x = 7
- 7 - 7
4x² - 12x - 7 = 0
4x² + 2x - 14x - 7 = 0
2x(2x) + 2x(1) - 7(2x) - 7(1) = 0
2x(2x + 1) - 7(2x + 1) = 0
(2x - 7)(2x + 1) = 0
2x - 7 = 0 or 2x + 1 = 0
+ 7 + 7 - 1 - 1
2x = 7 2x = -1
2 2 2 2
x = 3¹/₂ or x = ⁻¹/₂