Which of the following is not acceptable form of proof

Which answer best describes how to solve this story problem? A local store plans to put three coupons in each mailbox on a street. The right side of the street has 16 mailboxes. The left side of the street has 17 mailboxes.

Suppose you draw a card from a well shuffled deck of 52 what is the probability of drawing a 10 or jack

Find the least comon multple of 10 & 20

Alexis left her house at 7:45 p. m. to go shopping for clothes. She returned at 10:30 p. m. a) express the time in hours that Alexis spent away for home.

Which shows two expressions that are equivalent to (-8) (-12) (2) ? (-96) (2) and (-8) (-24) (-8) (-24) and (-1) (192) (-96) (2) and (-1) (192) (-8) (-24) and (-16) (-12)

Disadvantage to using tables and diagrams

Solve the equation. check your ans.

In 2015 there were approximately 33,300 firearm fatalities (homicide and suicides) Express the quality in deaths per hour

What is the general solution for (cosX + sinX) (1 - 2sinX) = 0

Sam used 2 gallons of gas to drive 50 miles and 4 gallons of gas to drive 100 miles. Is this a proportional relationship? Explain your reasoning.