2.25 Minutes is the answer. :)
Answer:
Yeah
Step-by-step explanation:
There is an infinite amount of 10 digits numbers with at leas two 1s in it.
Equations of straight lines are in the form y = mx + c (m and c are numbers). m is the gradient of the line and c is the y-intercept (where the graph crosses the y-axis).
Estimation: about 6,000 (90x70=6300)
Answer (product): 6256