What two conditionals are implied by the following biconditional? "The city can build new roads if and only if the sales tax is raised to 10%."

Will reward brainliest if given a proper answer! :)

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.

Select all of the following expressions that are equal to 2.5.

How many times larger is 9 × 10^8 than 3 × 10^-5? a. 3 × 10^13 b. 3 × 10^-40 c. 3 × 10^-13 d. 3 × 10^3