23. natalia decides to collect sea shells. she collects 10 sea shells on the first day. each day after
that, she walks on the beach and picks up 3 new sea shells. the explicit formula that represents
the number of shells in her collection each day is a, = 10 +(n-1)3. what is the 10th term of the
sequence, and what does it represent? show all of your work. explain your answer.

Solve the system by the elimination method. x + y - 6 = 0 x - y - 8 = 0 when you eliminate y , what is the resulting equation? 2x = -14 2x = 14 -2x = 14

Which letters from the table represent like terms? a and b b and c a and d b and d

Students at a high school were asked about their favorite outdoor activity. the results are shown in the two-way frequency table below. fishing camping canoeing skiing total boys 36 44 13 25 118 girls 34 37 22 20 113 total 70 81 35 45 231 select all the statements that are true based on the given table. more girls chose camping as their favorite outdoor activity than boys. more girls chose canoeing as their favorite outdoor activity than those who chose skiing. more boys chose skiing as their favorite outdoor activity than girls. there were more boys surveyed than girls. twice as many students chose canoeing as their favorite outdoor activity than those who chose fishing. more students chose camping as their favorite outdoor activity than the combined number of students who chose canoeing or skiing.