Answer:
A. 6
Step-by-step explanation:
Since, cake is of right triangled shape, so measure of its one angle would be 90° and the sum of the measures of the remaining two angles will also be equal 90°.
Therefore,
5x +10x = 90
15x = 90
x = 90/15
x = 6
4 because it is the only number on the x side of the table that you can get a single value for y from
1/2 ÷ -3/7 = -7/6 The answer is -7/6