A t-shirt increased in price by 1
4
After the increase it was priced
at £65.
What was the original price of
the t-shirt?

68$

Step-by-step explanation:

65 + 4 - 1

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

no i do not : ( what is it?