Write an algebraic expression for each item. Use x for the variable. Example:
A number times the difference of 58 and 17
x (58-17)
1. a number subtracted from 50
2. twice a number added to 189
3. 109 more than a number
4. 99 more than a number
5. a number times the difference of 76 and 39
6. a number added to 75
7. thrice the number subtracted from 45
8. 15 more than twice a number
9. 25 less than 3 times the number
10. a number times the sum of the number and 88​

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

Asphere has a diameter of 10 in. what is the volume of the sphere?

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above