Solve and check equation 20 = 2r - 3r + 10

What is the value of $x$ if $-/frac23 (x-5) = / frac32 (x+1) $?

A certain number has exactly 8 factors including 1 and itself. 2 of its factors are 21 and 35 what is the number?

What percent of 630 is 189

Jacques caught 3 fish weighting a total of 23 1/2 pounds. 2 of the fish weighed 9 5/8 & 6 1/4. How much did the third fish weigh?

How would you describe the concept of area?

Solve for x: 2 over 3 (x - 4) = 2x. 2 - 2 - 8 - 4

kyle mom made a pone and a cake. she cut the pone into 6 equal parts and the cake into 8 equal parts. his family ate 3/4 of the cake. if his family ate more cake than pone. what fraction of the pone coulh have been eaten.

A Cashier at the local bank is expected to serve 12 customers every hour. In the past 15 minutes, he served 4 customers. Assuming the the cashier continues to work at the same rate, will he meet his goal? Explain

A wise man once said "300 reduced by 3 times my age is 138"

Write 4.1 - 3 using words