Someone give me the name of this math what is it called ? I'll mark brainliest [(7 x 8) + 17.75] - 3.50

Find the multiplicative inverse of 8-12i

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3