10
2 + 10 + 250 + 1250 = 1512
1512 + 1112 = 2624
103 + 2 = 105
105
756
This is an arithmetic progression with a first term of 1, a difference of 1, last term (and number of terms) 105. → sum = ½ × number_of_terms × (first_term + last_term) = ½ × 105 × (1 + 105) = ½ × 105 × 106 = 5565
105+105=210.
3341640 feet
756+756+756=1512+756=2268
3024
105 + 66 + 287 + 81 = 539
figure it out ur self ******************** 2/3 + 5/7 + 2/5 Make each of the denominators the same, by finding the LCD, i.e. 105. To make 2/3 have a denominator of 105, multiply it by 35/35. Similarly, multiply 5/7 by 15/15, and 2/5 by 21/21. Therefore, 2/3*35/35 + 5/7*15/15 + 2/5*21/21 = 70/105 + 75/105 + 42/105 = (70 + 75 + 42)/105 = 187/105