Which two points on the number line represent numbers that can be combined to make zero?
a b
4 -3 -2 -1 0
c
1
d
2
-9-8-7 -6 -5
3 4
5
6
7
8
9
b and d
a and b
c and d
a and c

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be